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Class Information
Number: 524/921
Name: Synthetic resins or natural rubbers -- part of the class 520 series > Elastic memory or heat shrinkable compositions
Description: Subject matter involving compositions which are heat shrinkable or have elastic memory.

Patents under this class:

Patent Number Title Of Patent Date Issued
6933421 Methods of making disposable products having humidity activated materials with shape-memory Aug. 23, 2005
6627673 Methods of making humidity activated materials having shape-memory Sep. 30, 2003
6506710 Viscoelastic surfactants and compositions containing same Jan. 14, 2003
5910529 Gel composition having thickening agent providing Bingham plastic properties Jun. 8, 1999
5752926 Orthopedic casts May. 19, 1998
5418271 Coating composition comprising solids having reversible stress-induced fluidity May. 23, 1995
5418261 Polyurethane foams May. 23, 1995
5143443 Light permeable, color adding, self-securing stressed covers for large display light-emitting devices, and methods Sep. 1, 1992
4820782 Article having thermal recovery property Apr. 11, 1989
4193899 Elastomeric systems having unusual memory characteristics Mar. 18, 1980
T981003 Filled, biaxially oriented, thermoplastic film having preferential shrinkage and method of making such film Apr. 3, 1979
4057524 Epoxy derivative compositions Nov. 8, 1977

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