Dental floss and method of making same专利检索-调味剂食品添加剂调味料，色素和添加剂专利检索查询-专利查询网

Dental floss and method of making same

阅读：556发布：2023-10-16

专利汇可以提供Dental floss and method of making same专利检索，专利查询，专利分析的服务。并且A polyester elastomer is extruded into a hot and tacky tape having certain tensile properties when cooled, including a high degree of stretchability; and by subsequent stretching of the cooled product, its break strength is substantially increased while it develops desirable elastomeric properties. The tape is cut into strips of dental floss of 1- 1/2 to 10 mils thickness either before or after the stretching, and abrasive particles and a flavoring agent may be incorporated into the tape material or applied to the tape surface.，下面是Dental floss and method of making same专利的具体信息内容。

权利要求

2. A dental floss according to claim 1, in which said modulus is 5,000 to 6,000 psi, the break strength is 11,500 to 14,000 psi, and the ultimate elongation is 275 to 350 percent.

3. A dental floss according to claim 2, in which said elastomer is a polyester which is a polycondensation product made by condensing at least one aromatic dicarboxylic acid or its ester having a molecular weight below 300 with a polyalkylene ether glycol having a molecular weight of 400 to 6,000 and at least one diol having a molecular weight below 250.

4. A dental floss according to claim 1, in which said strip has a tack temperature above 200*F.

5. A dental floss according to claim 1, comprising also a flavoring agent carried by said strip.

6. A dental floss according to claim 1, comprising also a pulverized abrasive material carried by said strip.

7. A dental floss according to claim 6, in which said abrasive material has a particle size of 0.1 to 2.0 microns and constitutes about 3 percent by weight of the strip.

8. A method of making dental floss, which comprises extruding a polyester elastomer into a hot and tacky tape which, when cooled, is untacky and has the following tensile properties: a. Modulus of elasticity in tension in the order of 5,300 to 5, 700 psi. b. Break strength in the order of 7,200 to 7,500 psi. c. Ultimate elongation in the order of 750 to 850 percent, cooling the extruded tape, cutting the tape into strips having a thickness of 1- 1/2 to 10 mils, and stretching the material from one of said cooling and cutting steps to increase said break strength to about 11,500 to 14,000 psi, thereby reducing said ultimate elongation to about 300 to 350 percent.

9. A method according to claim 8, in which said elastomer is a polycondensation product made by condensing at least one aromatic dicarboxylic acid or its ester having a molecular weight below 300 with a polyalkylene ether glycol having a molecular weight of 400 to 6,000 and at least one diol having a molecular weight of 400 to 6,000 and at least one diol having a molecular weight below 250.

10. A method according to claim 8, comprising also the step of applying a pulverized abrasive material to said polyester elastomer.

11. A method according to Claim 8, comprising also the step of applying a flavoring agent to said polyester elastomer.

12. A method according to claim 8, in which said stretching is effected after said cooling but prior to said cutting.

13. The method of claim 8, in which said stretching is effected after said cutting.

说明书全文

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