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Class Information
Number: 521/916
Name: Synthetic resins or natural rubbers -- part of the class 520 series > Cellular product having enhanced degradability
Description: Subject matter involving a cellular product which has been formulated or prepared with the intent that said cellular product will be easily degraded for ecological or for any other purpose.
Patents under this class:
| Patent Number |
Title Of Patent |
Date Issued |
| 7361727 |
Copolymerization of 1,4-dioxan-2-one and a cyclic ester monomer producing thermal stabilized 1,4-dioxan-2-one (co)polymers |
Apr. 22, 2008 |
| 6284359 |
Starch-based core products for use in rolled paper goods |
Sep. 4, 2001 |
| 6265463 |
Degradation of expandable polymer bead products |
Jul. 24, 2001 |
| 6184261 |
Water-resistant degradable foam and method of making the same |
Feb. 6, 2001 |
| 6146892 |
Fibrillar matrices |
Nov. 14, 2000 |
| 5854345 |
Biodegradable polyester and natural polymer compositions and expanded articles therefrom |
Dec. 29, 1998 |
| 5763500 |
Expanded solid composition whose matrix comprises a starch-based cellular network and which contains size-graded spheroidal polyamide particles and its uses in topical application |
Jun. 9, 1998 |
| 5665786 |
Biodegradable polyester and natural polymer compositions and expanded articles therefrom |
Sep. 9, 1997 |
| 5618855 |
Biodegradable copolymers and plastic articles comprising biodegradable copolymers |
Apr. 8, 1997 |
| 5556895 |
Degradable polydioxaneone-based materials |
Sep. 17, 1996 |
| 5508036 |
Devices for preventing tissue adhesion |
Apr. 16, 1996 |
| 5447962 |
Degradable foam and use of same |
Sep. 5, 1995 |
| 5437924 |
Compostable, biodegradable foam core board |
Aug. 1, 1995 |
| 5360830 |
Expanded articles of biodegradable plastic materials |
Nov. 1, 1994 |
| 5278194 |
Environmentall dispersible syntactic foam |
Jan. 11, 1994 |
| 5248702 |
Starch-based, biodegradable packing filler and method of preparing same |
Sep. 28, 1993 |
| 5219646 |
Polyester blends and their use in compostable products such as disposable diapers |
Jun. 15, 1993 |
| 5216036 |
Photodegradable expanded polymeric foam |
Jun. 1, 1993 |
| 5210108 |
Degradable foam materials |
May. 11, 1993 |
| 5190984 |
Photodegradable expanded polymeric foam |
Mar. 2, 1993 |
| 5134171 |
Degradable foam materials |
Jul. 28, 1992 |
| 5116880 |
Biodisintegrable thermoplastic resin foam and a process for producing same |
May. 26, 1992 |
| 5110838 |
Biodisintegrable thermoplastic resin foam and a process for producing same |
May. 5, 1992 |
| 4725273 |
Artificial vessel having excellent patency |
Feb. 16, 1988 |
| 4661530 |
Biocompatible, antithrombogenic materials suitable for reconstructive surgery |
Apr. 28, 1987 |
| 4256851 |
Degradable plastic composition containing unsaturated alcohol or ester thereof |
Mar. 17, 1981 |
| 4224416 |
Degradable plastic composition containing amine |
Sep. 23, 1980 |
| 4212955 |
Degradable plastic composition containing ortho ester |
Jul. 15, 1980 |
| 4197371 |
Water vapor absorbing and transmitting sheet material of rubber containing a swellable cross-linked cellulose ether or starch ether and a process for the manufacture thereof |
Apr. 8, 1980 |
| 4144153 |
Radiation process for producing 1,2-polybutadiene foamed products |
Mar. 13, 1979 |
| 4132839 |
Biodegradable hydrophilic foams and method |
Jan. 2, 1979 |
| 4076655 |
Photodegradable atactic polystyrene compositions |
Feb. 28, 1978 |
| 4049592 |
Biodegradable hydrophilic foams and method |
Sep. 20, 1977 |
| 3951884 |
Photo-degrading resinous composition and shaped article manufactured therefrom |
Apr. 20, 1976 |
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