Synthetic resins or natural rubbers -- part of the class 520 ser – Synthetic resins – Polymers from only ethylenic monomers or processes of...
Patent
1976-11-04
1977-12-06
Lilling, Herbert J.
Synthetic resins or natural rubbers -- part of the class 520 ser
Synthetic resins
Polymers from only ethylenic monomers or processes of...
156331, 260 775CR, 260 775AT, 260 775AM, 260842, 260844, 260851, 526 23, 526 51, 526 75, C08G 6700, C08G 6900, C08G 1810
Patent
active
040618455
ABSTRACT:
Novel products can be prepared by reaction of monohydrazides and/or polyhydrazides, in particular dihydrazides, with mono-, di- or, poly-acrylyl compounds. The reactants can be chosen such that the resulting polymers are strictly linear as in the case of reaction of a monohydrazide with a diacrylyl compound as follows: ##STR1## WHEREIN EACH (O) is a carbonyl oxygen, n is a positive integer, each R is hydrogen or a monovalent group, and each Q is an organic group, R and Q being free of functions which would interfere with the desired reaction at 80.degree. C. Various degrees of crosslinking can be achieved by reacting monohydrazides with components containing an average of more than two acrylate double bonds per molecule or by reacting di-hydrazides with di- or poly-acrylyl compounds.
Fumaric, maleic and itaconic esters and acid esters add to hydrazides in a similar fashion as acrylates, the aliphatic double bond being similarly activated by the carbonyl group. However, methacrylates are totally inert to hydrazide at 80.degree. C.
These reaction products or polymers are useful as exterior or protective and decorative coating materials for bonderized steel and the like. Their impact resistance can be improved by reaction with toughening agents.
REFERENCES:
patent: 2761857 (1956-09-01), Barnhart et al.
patent: 3194797 (1965-07-01), Caldwell et al.
patent: 3514429 (1970-05-01), Stahmann et al.
patent: 3576908 (1971-04-01), Brack
patent: 3734885 (1973-05-01), Muller et al.
patent: 3748312 (1973-07-01), Burns et al.
Fabris Hubert J.
Gruber David P.
Sponseller David R.
Uelzmann Heinz
Lilling Herbert J.
The General Tire & Rubber Company
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