101 |
Production of highly polymeric gelatin |
JP5874990 |
1990-03-09 |
JPH03259928A |
1991-11-20 |
TANI TAKEHIRO; MOTODA TORU; MOTOKI MASAO |
PURPOSE: To obtain a highly polymeric gelatin having a high m.p., a high viscosity and a high molecular weight and being useful for edible film, medicinal capsules, etc., by adding a specified amount of transglutaminase to a gelatin solution of a specified concentration and deactivating the enzyme after the reaction.
CONSTITUTION: 0.1 unit or above, per g of the gelatin, of transglutaminase is added to a gelatin solution of a 0.1-5wt.% concentration, and the enzyme is deactivated after the reaction.
COPYRIGHT: (C)1991,JPO&Japio |
102 |
Dehydration and pulverization of polymer substance |
JP12967389 |
1989-05-23 |
JPH0258542A |
1990-02-27 |
HAJI AKIRA; KIMURA KAZUJI; HASHIMOTO KOICHI |
PURPOSE: To extremely readily dehydrate a large quantity of water and obtain a dry substance by freezing a hydrated gel or hydrated sol of a hydrophilic polymer, then dipping the frozen substance into a hydrophilic organic solvent for defrosting.
CONSTITUTION: A hydrated gel or sol of a hydrophilic polymer substance is frozen and the resultant frozen substance is dipped into a hydrophilic organic solvent for defrosting. The resultant defrosted substance is dried and ground into a powdery hydrophilic polymer substance. The hydrated gel or sol which is the object of the application of the above-mentioned method is composed of 1 pt.wt. hydrophilic polymer substance containing 0.2-(300-500) pts.wt. water. For example, in case of curdlan, gelatin, agar, etc., the range of the application is 10-50 pts.wt. water content based on 1 pts.wt. of the above-mentioned substance.
COPYRIGHT: (C)1990,JPO&Japio |
103 |
New polymer composition |
JP12303989 |
1989-05-18 |
JPH0220564A |
1990-01-24 |
JIYAKOBU SHIRUBIGERU; ROBAATO FUREDERITSUKU TOOMASU |
PURPOSE: To provide a polymer composition useful as a solid article, such as a sheet or a bottle, and a carrier material for a chemical, etc., by adding a water-insoluble synthetic thermoplastic polymer to a water-containing hydrophilic polymer, and melting and mixing them in a sealed container at elevated temperature and at increased pressure.
CONSTITUTION: One kind or more of substantially water-insoluble synthetic thermoplastic polymers (e.g. PE) are added to one kind or more of hydrophilic polymers (e.g. gelatin) having a water content of preferably 5-25 wt.% of the total amounts of the hydrophilic polymer/water and, if necessary, containing other additive (e.g. lubricant: calcium stearate), and they are melted and mixed together by heating in a sealed container at an elevated temperature and under pressure increased thereby, for a sufficient time to produce a molten body, so as to obtain a polymer composition comprising a molten body including one kind or more of water-containing decomposition hydrophilic polymers and one kind or more of substantially water-insoluble synthetic thermoplastic polymers.
COPYRIGHT: (C)1990,JPO |
104 |
JPS6354749B2 - |
JP12413380 |
1980-09-09 |
JPS6354749B2 |
1988-10-31 |
UORUFUGANGU GURATSUSERU; PEETAA YORUGU KOEPUTSUFU; IBAN TOMUKA |
|
105 |
Modified gelatin and its production |
JP18610286 |
1986-08-07 |
JPS62121729A |
1987-06-03 |
POPPE JAN; RIDOUX CLAUDE; GROUBER BERNARD; SCHOENTJES MICHEL |
|
106 |
JPS6225354B2 - |
JP11449977 |
1977-09-22 |
JPS6225354B2 |
1987-06-02 |
RORUFU MONSUHAIMAA; ERUNSUTO PUFURAIDERAA |
|
107 |
JPS6152180B2 - |
JP2274078 |
1978-02-28 |
JPS6152180B2 |
1986-11-12 |
RORUFU MONSUHAIMAA; ERUNSUTO PUFURAIDERERU |
|
108 |
Removal of nucleic acid and purine base from gelatin |
JP28322985 |
1985-12-18 |
JPS61197599A |
1986-09-01 |
MIKUROOSU SUIYUCHIYU; AAGOTA PAROTAASU; YOOJIEFU SEIYUTORI; EEBA FUENIBESU |
|
109 |
Curing method of gelatin |
JP22345784 |
1984-10-24 |
JPS61100743A |
1986-05-19 |
OKAMURA HISASHI; KAWAMOTO HIROYUKI |
PURPOSE: To cure the gelatin with a high efficiency by incorporating a specific compd. to the gelatin, thereby reacting the compd. to a reactive residue contd. in the gelatin with a good selectivity.
CONSTITUTION: The specific compd. shown by the formula is used as a curing cmopd. In the formula, R
2 and R
3 together with each other preferably form a ring, more preferably a pyrroliding ring. R
1 and R
2 together with each other rpeferably form a ring, more preferably a pyridine ring. R
4 and R
5 may be a substd. group such as a halogen substd. group. X
- is an anion and comprises more preferably Cl
-, BR
4
-, PF
6
- and a sulfonate ion.
COPYRIGHT: (C)1986,JPO&Japio |
110 |
JPS594986B2 - |
JP5097676 |
1976-05-06 |
JPS594986B2 |
1984-02-02 |
JAN KUROODO BATAARU; JAN BYUISON |
|
111 |
JPS5850987B2 - |
JP2763974 |
1974-03-09 |
JPS5850987B2 |
1983-11-14 |
TOMASU SUTAUNA; RAINA KITSUTSUINGU |
|
112 |
JPS57501729A - |
JP50190081 |
1981-03-18 |
JPS57501729A |
1982-09-24 |
|
|
113 |
JPS5724535B2 - |
JP2179773 |
1973-02-24 |
JPS5724535B2 |
1982-05-25 |
|
|
114 |
JPS5648859B2 - |
JP1054276 |
1976-02-02 |
JPS5648859B2 |
1981-11-18 |
|
|
115 |
Gelatin hardening method |
JP10281479 |
1979-08-14 |
JPS5627135A |
1981-03-16 |
KOBAYASHI MORIO; SASAKI TAKASHI |
PURPOSE: To obtain a hardened film withstanding high temp. rapid processing and automatic processing with a powerful developer by using the partial hydrolyzate of a dichloro-S-triazine deriv. to harden gelatin, especially the gelatin film of a photographic material.
CONSTITUTION: A dichloro-S-triazine deriv. represented by the formula (where n≥2 and R is an n-valent org. group) is partially hydrolyzed with an about n×2W 4 equivalent aqueous soln. of NaCO
3, trisodium phosphate or the like at room temp. W about 50°C, and acetone used to dissolve the triazine is distilled out of the resulting filtrate under reduced pressure. An adequate amount of water is then added to the residue to prepare a gelatin hardening agent of a predetermined concn. the soln. may be evaporated to dryness to prepare a powdered hardening agent. When this agent is added to a silver halide emulsion, it is preferably added after the 2nd ripening by 5×10
-7W2.5×10
-3mol to 1g of dry gelatin. This agent shows high hardening speed, causes no post hardening, and exerts no unfavorable influence on photographic characteristics.
COPYRIGHT: (C)1981,JPO&Japio |
116 |
JPS55501087A - |
JP50020679 |
1979-11-29 |
JPS55501087A |
1980-12-11 |
|
|
117 |
JPS5543018B2 - |
JP10801877 |
1977-09-09 |
JPS5543018B2 |
1980-11-04 |
|
|
118 |
JPS5538655B2 - |
JP8244375 |
1975-07-04 |
JPS5538655B2 |
1980-10-06 |
|
|
119 |
JPS5419901B2 - |
JP2763874 |
1974-03-09 |
JPS5419901B2 |
1979-07-18 |
|
|
120 |
Preparation of collangen containing no pyrogen |
JP10544878 |
1978-08-29 |
JPS5449301A |
1979-04-18 |
MAMAATO MANAHAN KURUTSU JIYUNI |
Collagen is freed of pyrogenetic substances by processing collagen, for example green corium, with aqueous solutions of alkali metal or alkaline earth metal hypochlorites, washing with aqueous ethanol and subsequently washing with pyrogen-free water. |