Blends of cyclic vinyl ether containing compounds and urethane acrylates

Claim 2

A composition suitable for photocopolymerization comprising a cyclic vinyl ether containing compound and a urethane acrylate.

Claim 3

A composition as defined in claim 1 wherein the cyclic vinyl ether containing compound is selected from the following: Z and Z' each represents hydrogen or an alkyl group having from 1 to 10. and usually no more than 6, carbon atoms: X and X' are members of the class consisting of a bivalent saturated hydrocarbon group. R, having the structure, -C n H 2n -, wherein n is an integer having a value of from 1 to 10: an oxy radical. -0-: and a carbonyl group, -C(O)-: and, in addition X' may be a carbonyloxy group, -O(O)C-, the carbon atom of which is bonded to the 2-position of the dihydropyranyl ring: X and X' may be the same or different provided that taken together they contain either zero or 2 oxygen atoms; a has a value of from zero to 1. a being zero only when X' is the aforesaid carbonyloxy group; Q is a member of the class consisting of the aforesaid R group: a dioxylakylene group. -ORO-, wherein R is as defined above; a dicarboxylate group, -OC-(O)-R'-C(O)O,- wherein R' is the nucleus of a dicarboxylic acid; and a polycarbamate group such as the dicarbamate group. -OC(O)NH-R"-NH-C(O)O-, wherein R", as illustrated, is the nucleus of a diisocyanate: and X, X' and Q taken together is such that the linking chain, -X-Q-X'-, contains an even number of oxygen atoms from two to four, provided that when X and X' are both oxy radicals, the linking chain contains no other oxygen atoms (that is, Q or R). and when X and X' are both carbonyl groups, the linking chain contains four oxygen atoms (that is, Q is -ORO-).

Claim 4

A composition as defined in claim 1 wherein the cyclic vinyl ether containing compound is 3.4-dihydro-2H-pyran-2-methyl(3.4-dihydro-2H-pyran-2-carboxylates) having the formula: wherein Z and Z' are as above-defined, preferably a total of from 5 to 7 of the respective Z and Z' groups are hydrogen and correspondingly, from 2 to zero are alkyl groups.

Claim 5

A composition as defined in claim 1 wherein the cyclic vinyl ether containing compound is an alkanedioxy-bis(3',4'-dihydro-2'H-pyran-2'-carbonyl) compound having the structure: wherein Z and Z' are as defined in claim 2, and n is an integer from 1 to 10, a bis-(3',4'-dihydro-2'H-pyran-2'-oxy)alkane having the formula: wherein.Z, Z'. are as defined in claim 2 and n is an integer from 1 to 10,or a bis-(3',4'-dihydro-2'H-pyran-2'-alkoxy)alkane having the formula: wherein Z, Z' are as defined in claim 2 and n is an integer from 1 to 10.

Claim 6

A composition as defined in claim 1 wherein the cyclic vinyl ether containing compound is a bis-(3',4'-dihydro-2'H-pyran-2'-alkyl) carboxylate having the general formula: wherein Z, Z' are as defined in claim 2. n is an integer from 1 to 10,and R' is the nucleus of a dicarboxylic acid and may be a bivalent aliphatic. cycloaliphatic or aromatic nucleus including corresponding halogen-substituted nuclei, or a compound having the general formula: wherein Z, Z' are as defined in claim 2. n is an integer from 1 to 10, R is an aliphatic, cyloaliphatic or aromatic radical which may be unsubstituted hydrocarbyl groups or hydrocarbyl groups substituted with halogen or alkoxy groups.

Claim 7

A composition as defined in claim 1 wherein the cyclic vinyl ether containing compound is selected from one or more of the following: wherein R 1 is hydrogen or methyl and X is selected from or wherein n has a value of from 1 to 50 and wherein R 1 ' is the residue of a carboxylic acid and can be (1) hydrogen, (2) alkyl which is substituted with any substituent which does not unduly interfere with the polymerization, or unsubstituted, linear or branched, containing up to 20 carbon atoms, and (3) aryl which is substituted with any substituent which does not unduly interfere with the polymerization or, which is unsubstituted, having 6 to 10 ring carbon atoms.

Claim 8

A composition as defined in claim 1 wherein the cyclic vinyl ether containing compound is an alkylene oxide adduct of 3.4-hydropyran-2- methanol of the general formula: wherein R 1 and n are as defined in claim 6, a compound of the formula: wherein R 1 and R 1 ' are as defined in claim 6 or a compound of the general formula: wherein R 3 and x are as defined in claim 8, and R 1 and n are as defined in claim 6.

Claim 9

A composition as defined in claim 1 wherein the cyclic vinylether containing compound is of the formula: wherein R 1 is as defined in claim 6, R 3 is a hydrogen, alkyl, alkoxy, aryl, cycloalkyl, alkaryl or aralkyl group having up to 12 carbon atoms and at least (2x-3) of the R 3 groups are hydrogen, x has a value of 2 to 12 and n is as defined in Claim 6 or a compound of the formula: wherein R 1 , R 31 n, and x are as defined above.

Claim 10

A composition as defined in claim 1 wherein the cyclic vinyl ether containing compound is of the formula: or