Synthetic resins or natural rubbers -- part of the class 520 ser – Synthetic resins – Mixing of two or more solid polymers; mixing of solid...
Patent
1991-08-26
1992-09-22
Seidleck, James J.
Synthetic resins or natural rubbers -- part of the class 520 ser
Synthetic resins
Mixing of two or more solid polymers; mixing of solid...
525125, 525127, 524504, 524507, C08L 5106, C08L 7504, C08K 336, C08K 714
Patent
active
051497395
ABSTRACT:
A thermoplastic elastomer polyurethane is made having improved properties such as flexural modulus, flexural strength, and improved melt processability. An unaged polyurethane containing free isocyanate groups is made in situ in a high shear blending apparatus. The unaged polyurethane is typically transferred to another high shear blending apparatus and blended with either an unmodified polyolefin and/or a carbonyl modified polyolefin along with optional but desirable fibers to produce a thermoplastic elastomer polyurethane composition.
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patent: 4883837 (1989-11-01), Zabrocki
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The Handbook of Thermoplastic Elastomers, edited by Benjamin M. Walker, Chapter 5, Thermoplastic Polyurethane Elastomers, p. 244, Van Nostrand Reinhold Co., 1979.
Hamilton, III Thomas
Hudak Daniel J.
Seidleck James J.
Shust Nestor W.
The BFGoodrich Company
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