Synthetic resins or natural rubbers -- part of the class 520 ser – Synthetic resins – Compositions to be polymerized by wave energy wherein said...
Patent
1993-08-18
1994-12-13
McCamish, Marion E.
Synthetic resins or natural rubbers -- part of the class 520 ser
Synthetic resins
Compositions to be polymerized by wave energy wherein said...
522 96, 522 97, 522 98, 526301, C08F 250, C08F 2602, C08F29906
Patent
active
053730321
ABSTRACT:
This invention relates to alk-1-enyl etherurethanyl block prepolymers which are curable by cationically initiated radiation and which are defined by the formula ##STR1## wherein m has a value of from 1 to 25;
A is C.sub.2 to C.sub.12 alkylene, C.sub.6 to C.sub.14 aryl, both groups optionally substituted with lower alkyl, halo lower alkyl, alkyleneoxy, halogen or aryl;
R.sub.1 is alkylene containing from 1 to 6 carbon atoms;
R.sub.2 is a saturated or unsaturated divalent radical containing from 1 to 14 carbon atoms and is selected from the group of alkylene, alkenylene and arylene, each group optionally substituted with oxygen, halogen, lower alkyl and/or hydroxy;
R.sub.3 is hydrogen or C.sub.1 to C.sub.6 alkyl;
R.sub.4 is C.sub.1 to C.sub.6 alkylene, C.sub.6 to C.sub.14 arylene, lower alkyl substituted phenylene or xylylene and
R.sub.5 is hydrogen or C.sub.1 to C.sub.4 alkyl. The invention also relates to the method of preparing and curing the above prepolymer and to the use of the cured prepolymer as a hard, flexible protective coating possessing high density and superior resistance to abrasion and chemical attack.
REFERENCES:
patent: 4751273 (1988-06-01), Lapin
patent: 5019636 (1991-05-01), Lapin
patent: 5139872 (1992-08-01), Lapin
patent: 5153237 (1992-10-01), Plotkin
Miller Mark M.
Plotkin Jeffrey S.
ISP Investments Inc.
Koeckert Arthur H.
Maue Marilyn J.
McCamish Marion E.
Ward Joshua J.
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