161 |
POLYMERS, SUBSTRATES, METHODS FOR MAKING SUCH, AND DEVICES COMPRISING THE SAME |
US14765982 |
2014-02-06 |
US20160002391A1 |
2016-01-07 |
Nicholas Brendan Duck |
The present invention relates generally to substrates for making polymers and methods for making polymers. The present invention also relates generally to polymers and devices comprising the same. |
162 |
HETEROATOM CONTAINING CYCLIC DIMERS |
US14639668 |
2015-03-05 |
US20150191444A1 |
2015-07-09 |
Graciela B. Arhancet; Matthew Mahoney; Xiaojun Wang |
The present invention provides cyclic dimers of alpha acids and polymers derived therefrom. Also provided are processes for preparing and methods of using the cyclic dimers and the polymers derived from the cyclic dimers. |
163 |
CROSS-LINKED POLYCARBONATE RESIN WITH IMPROVED CHEMICAL AND FLAME RESISTANCE |
US14137532 |
2013-12-20 |
US20140178665A1 |
2014-06-26 |
Jean-Francois Morizur; Paul Dean Sybert |
Processes for increasing the chemical resistance of a surface of a formed article are disclosed. The formed article is produced from a polymeric composition comprising a photoactive additive containing photoactive groups derived from a monofunctional benzophenone. The surface of the formed article is then exposed to ultraviolet light to cause crosslinking of the photoactive additive and produce a crosslinked surface. The crosslinking enhances the chemical resistance of the surface. Various means for controlling the depth of the crosslinking are also discussed. |
164 |
Method of Producing Composite Materials |
US13977926 |
2012-01-05 |
US20130331536A1 |
2013-12-12 |
Mika Harkonen; Lisa Wikstrom; Kalle Nattinen; Leena Nurmi; Hannu Mikkonen |
A method of producing a material comprising nanocellulose and a polymer, comprising carrying out in-situ, ring opening of polymerisation of dry nanocellulose dispersed in a monomer to produce said material. The material can be used as a reinforcing additive for plastics, for example in the form of a plastics masterbatch. |
165 |
FUNCTIONALIZED POLYMER COMPOSITIONS |
US13763135 |
2013-02-08 |
US20130209391A1 |
2013-08-15 |
Graciela B. Arhancet; Matthew Mahoney; Xiaojun Wang; Rangarani Karnati |
The invention relates to functionalized polymers including homopolymers and copolymers and their uses in industrial applications and in agricultural applications. In particular, the homopolymers and copolymers may be, for example, used in polymer blends, used as nutritives and in feed compositions, and used in combination with a pharmaceutical or nutritive. |
166 |
Method for olefin oxidation |
US593838 |
1996-01-30 |
US5872157A |
1999-02-16 |
Joseph M. DeSimone; Timothy J. Romack |
A process for making oxidized olefins is disclosed. Specifically, the process comprises providing an olefin and oxygen in combination in a reaction medium comprising carbon dioxide, and then oxidizing the olefin in the reaction medium to make the oxidized olefin. Preferably, a perfluoropolyether is produced by the process. |
167 |
Polymeric peroxycarbonates and process for making them |
US379636 |
1995-02-23 |
US5559162A |
1996-09-24 |
John Meijer; Petrus J. T. Alferink |
The present invention relates to polymeric peroxycarbonates, a process for making the polymeric peroxycarbonates and initiator compositions comprising these polymeric peroxycarbonates. The polymeric peroxycarbonates of the present invention provide significant advantages in the polymerization of vinyl monomers. |
168 |
Ester-type polymeric peroxides |
US480037 |
1990-02-14 |
US4954656A |
1990-09-04 |
Shuji Suyama; Yoshiki Higuchi |
A novel polymeric peroxide used as a free radical polymerization initiator for vinyl monomers is a compound alternately bonding the two particular structural units in random form and having two different thermal decomposition rates. |
169 |
Preparation of aromatic polymers using a specified quantity of Lewis acid |
US376974 |
1989-07-06 |
US4912195A |
1990-03-27 |
Viktors Jansons; Heinrich C. Gors |
A process for producing an aromatic polyketone which comprises polymerizing an appropriate monomer or monomers by a Friedel-Crafts polymerization reaction using a Lewis acid catalyst. A controlling agent such as a Lewis base may be added to the reaction medium and/or the reaction is conducted under specified conditions to control the reaction. The reaction medium comprises, for example, aluminum trichloride as the Lewis acid, an organic Lewis base such as N,N-dimethylformamide or an inorganic Lewis base such as sodium or lithium chloride, and a diluent such as methylene chloride or dichloroethane. The amount of Lewis acid, the amount of Lewis base, the temperature of the reaction and the monomer to diluent molar ratio are varied depending on the monomer system to obtain melt-processable, high molecular weight, substantially linear polymers, for example poly(carbonyl-p-phenylene-oxy-p-phenylene), poly(carbonyl-p-phenylene-oxy-p-phenylene-oxy-p-phenylene), and the like. Copolymers containing up to 30% by weight of an aromatic sulfonyl halide comonomer can also advantageously be produced by this process. |
170 |
Catalytic process for preparing polymers of sulfur dioxide and olefin |
US164161 |
1988-03-03 |
US4808697A |
1989-02-28 |
Eit Drent |
The invention is a process for preparing linear alternating polymers of sulfur dioxide, ethylene, optionally at least one ethylenically unsaturated hydrocarbon other than ethylene and optionally carbon monoxide having the general formula ##STR1## wherein Z is at least one moiety selected from SO.sub.2 and CO, G is the moiety of at least one ethylenically unsaturated hydrocarbon of at least 2 carbon atoms polymerized through the ethylenic unsaturation, n is an integer of at least 1, and m is an integer of zero or greater, which process comprises contacting sulfur dioxide, ethylene, optionally carbon monoxide, and optionally at least one ethylenically unsaturated hydrocarbon of at least 2 carbon atoms, in the presence of a catalyst obtained from (1) a compound of a Group VIII metal selected from palladium, cobalt and nickel, (2) a bidentate ligand of phosphorus, arsenic, or antimony, and (3) an anion of a non-hydrohalogenic acid having a pKa of less than 6. |
171 |
Preparation of aromatic polymers |
US790030 |
1985-10-22 |
US4721771A |
1988-01-26 |
Viktors Jansons; Heinrich C. Gors |
Aromatic oligomers, in particular arylene ketone and arylene sulfone oligomers, are prepared by reacting an appropriate monomer system in the presence of free Lewis acid and a complex between a Lewis acid, for example, aluminum trichloride, and a Lewis base, for example, N,N-dimethylformamide, and, optionally, a diluent, such as methylene chloride. The process is particularly advantageous for the preparation of substantially or all paralinked arylene ether ketone oligomers as the presence of the Lewis acid/Lewis base complex markedly reduces alkylation and ensures the substantial absence of ortho substitution. The monomer system can be, for example, a self-reacting monomer such as p-phenoxy-benzoyl chloride or a two-monomer system such as 1,4-diphenoxybenzene and terephthaloyl chloride. |
172 |
Preparation of aromatic polymers |
US922837 |
1986-10-23 |
US4709007A |
1987-11-24 |
Viktors Jansons; Heinrich C. Gors |
A process for producing an aromatic polyketone which comprises polymerizing an appropriate monomer or monomers by a Friedel-Crafts polymerization reaction using a Lewis acid catalyst. A controlling agent such as a Lewis base may be added to the reaction medium and/or the reaction is conducted under specified conditions to control the reaction. The reaction medium comprises, for example, aluminum trichloride as the Lewis acid, an organic Lewis base such as N,N-dimethylformamide or an inorganic Lewis base such as sodium or lithium chloride, and a diluent such as methylene chloride or dichloroethane. The amount of Lewis acid, the amount of Lewis base, the temperature of the reaction and the monomer to diluent molar ratio are varied depending on the monomer system to obtain melt-processable, high molecular weight, substantially linear polymers, for example poly(carbonyl-p-phenylene-oxy-p-phenylene), poly(carbonyl-p-phenylene-oxy-p-phenylene-oxy-p-phenylene), and the like. Copolymers containing up to 30% by weight of an aromatic sulfonyl halide comonomer can also advantageously be produced by this process. |
173 |
Catalytic preparation of aromatic polyketone from phosgene and aromatic
ether or sulfide |
US804615 |
1985-12-05 |
US4707536A |
1987-11-17 |
Norihiko Yoneda; Tsuyoshi Fukuhara; Seiichi Nozawa |
Disclosed herein is a process for producing aromatic polyketone, comprising reacting a compound represented by the formula (I): ##STR1## wherein each of R.sup.1 to R.sup.12 represents a hydrogen atom, a halogen atom, a hydrocarbon group or an alkoxy group; X.sup.1 and X.sup.2 respectively represent an oxygen atom or a sulfur atom and n is an integer of from 0 to 5,with phosgene (i) in the presence of a fluoroalkanesulfonic acid or (ii) in hydrogen fluoride in the presence of boron trifluoride at a temperature of from 65.degree. to 90.degree. C. |
174 |
Preparation of poly(arylene ether ketones) |
US922781 |
1986-10-23 |
US4698393A |
1987-10-06 |
Viktors Jansons; Heinrich C. Gors; Stephen Moore; Robert H. Reamey; Paul Becker |
The preparation of poly(arylene ether ketones) by Friedel-Crafts polymerization, in the presence of a Lewis acid catalyst and a diluent, is conducted under conditions in which the polymer and/or its complex with the catalyst is suspended in the diluent during at least part of the polyreaction mixture if desired. The dispersant may be a polymer or an organic compound containing at least eight carbon atoms and is preferably a Lewis base. The dispersant preferably contains at least one molecular segment substantially compatible with the poly(arylene ether ketone) or its complex with the Lewis acid and substantially incompatible with the diluent and at least one molecular segment substantially compatible with the diluent and substantially incompatible with the poly(arylene ether ketone) or its complex with the Lewis acid. |
175 |
Polymeric diacyl peroxides |
US508197 |
1983-06-27 |
US4469862A |
1984-09-04 |
Takeshi Komai; Toshihiro Izumi; Syuji Suyama |
An industrially highly valuable novel polymeric diacyl peroxide which is used as a polymerization initiator for free radical polymerization of vinyl monomer, and which is appreciably safe in production and handling, rapidly soluble in vinyl monomer with high solubility, and has exceedingly high catalyst efficiency in the free radical polymerization of vinyl monomer. |
176 |
Phenylene substituted polymeric dialkyl peroxides |
US956712 |
1978-11-01 |
US4228306A |
1980-10-14 |
Roger N. Lewis; Lawrence A. Bock |
Cyclic and acyclic phenylene substituted dialkyl peroxides most of which are in an acyclic polymeric form. |
177 |
Prepolymer dianhydrides |
US933186 |
1978-08-14 |
US4196129A |
1980-04-01 |
Robert A. Rhein; John D. Ingham |
A process for preparing dianhydrides that are miscible with hydroxyl prepolymers at moderate temperatures and can cure hydroxyl prepolymers to elastomers at moderate temperatures is disclosed. The dianhydrides are prepared by solution reaction of a prepolymer diol with excess dianhydride followed by removal of unreacted dianhydride. The prepolymer dianhydrides are miscible with hydroxyl substituted hydrocarbon prepolymers and cure the prepolymers to polyester-linked elastomers. |
178 |
Erodible agent releasing device comprising poly(orthoesters) and
poly(orthocarbonates) |
US827223 |
1977-08-24 |
US4138344A |
1979-02-06 |
Nam S. Choi; Jorge Heller |
The invention concerns orthoester and orthocarbonate polymers having a repeating mer comprising a hydrocarbon radical and a symmetrical dioxycarbon unit of the general formula: ##STR1## WHEREIN R.sub.1 is a multivalent hydrocarbon radical, R.sub.2 and R.sub.3 are hydrocarbon radicals with at least one of R.sub.2 or R.sub.3 bonded to the dioxycarbon through an oxygen linkage, and which polymers are synthesized by reacting a polyol with an orthoester or orthocarbonate. The polymers are useful for making articles of manufacture, including devices and coatings for delivering beneficial agents. |
179 |
Method for preparing polyperoxydicarbonate esters |
US510181 |
1974-09-30 |
US3935243A |
1976-01-27 |
Duane B. Priddy |
Dialkyl alkylenebis(peroxydicarbonates) and oxyalkylenebis(peroxydicarbonates) and corresponding higher polyfunctional peroxydicarbonic acid esters are useful initiators of vinyl polymerization. These compounds are prepared by reacting a sodium alkylperoxycarbonate with a diol bis(chloroformate) at from about -10.degree.C to about 20.degree.C. |
180 |
Perfluorinated linear polyethers |
US39317973 |
1973-08-30 |
US3896167A |
1975-07-22 |
SIANESI DARIO; PASETTI ADOLFO; CORTI COSTANTE |
Perfluorinated cyclic ethers and fluorinated linear polyethers are prepared by photochemical reaction in liquid phase of perfluoropropylene with oxygen in presence of ultraviolet radiation.
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