Synthetic resins or natural rubbers -- part of the class 520 ser – Synthetic resins – Polymers from only ethylenic monomers or processes of...
Patent
1997-02-28
1997-12-23
Zitomer, Fred
Synthetic resins or natural rubbers -- part of the class 520 ser
Synthetic resins
Polymers from only ethylenic monomers or processes of...
526266, 526271, 5263184, 5263186, 5263488, E08F22206
Patent
active
057008906
ABSTRACT:
New ethylene/acid copolymer ionomers which contain both (meth)acrylic acid and certain dicarboxylic acid monomers are described. The polymers may be melt processed as readily as ethylene/(meth)acrylic acid dipolymer ionomers, in contrast to ethylene/acid copolymer ionomers containing only dicarboxylic acid monomer derived in-chain acid units. Polymers with typical levels of (meth)acrylic acid and low levels of diacid provide ionomers comparable to existing ionomers, but which have adhesive and polymer blend compatibilizing characteristics, while polymers with higher levels of diacid will exhibit properties which depend on in-chain diacid derived units.
REFERENCES:
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patent: 3904588 (1975-09-01), Greene
patent: 4351931 (1982-09-01), Armitage
patent: 4690981 (1987-09-01), Statz
patent: 5276135 (1994-01-01), Powell
R. W. Rees, Chapter 10A--"Ionomeric Thermoplastic Elastomers Early Research--Surlyn.RTM. and Related Polymers", Thermoplastic Elastomers--A Comprehensive Review, ed. N. Legge et al., Publ. hanser 1987.
E. I. Du Pont de Nemours and Company
Zitomer Fred
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