Thermoplastic resin compositions and temperature-dependent shape

Details Thermoplastic resin compositions and temperature-dependent shape Thermoplastic resin compositions and temperature-dependent shape

1997-04-15

1999-04-20

Mosley, Terressa

Synthetic resins or natural rubbers -- part of the class 520 ser

Synthetic resins

Mixing of two or more solid polymers; mixing of solid...

525418, 525423, 525452, 525461, 528176, 528193, 528194, 528196, 528271, 528272, 528332, C08F 2000

Patent

active

058957189

ABSTRACT:
A thermoplastic resin composition comprising a thermoplastic resin (A) and a thermoplastic polymer (B) having a glass transition temperature within the range of from -20.degree. C. to 70.degree. C. which are melt-blended in a proportion (A)/(B) of from 95/5 to 20/80 in weight ratio. The composition, upon application of an external stress in a temperature region of from a temperature about the glass transition temperature of the thermoplastic polymer (B) to the melting point thereof, is transformable to any shape that conforms to that stress, and is capable of becoming fixed to the transformed shape in a temperature region lower than the glass transition temperature.
The composition can be used to provide a temperature-dependent shape-transformable/fixable product formed of the above composition.

REFERENCES:
patent: 4845162 (1989-07-01), Schmitt et al.
patent: 5304606 (1994-04-01), Yamamoto
patent: 5318813 (1994-06-01), Flexman, Jr.
patent: 5408002 (1995-04-01), Coleman et al.
patent: 5506300 (1996-04-01), Ward et al.

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