Claims
- 1. A curable composition consisting essentially of:
- (A) a monofunctional monomer based upon (meth)acrylate, in an amount of 5 to 95% by weight;
- (B) a polyfunctional monomer based on (meth)acrylate in an amount of 95 to 5% by weight and said (meth)acrylate consists of one or more monomers selected from the group consisting of
- (B.sub.1) poly(meth)acrylates of alkane polyols,
- (B.sub.2) poly(meth)acrylates of (poly)oxyalkanepolyols.
- (B.sub.3) epoxy(meth)acrylates represented by the general formula (1) ##STR43## in which R.sub.1 and R.sub.2 represent each H or CH.sup.3 n is zero or a positive integer and R.sup.3 denotes a divalent aliphatic, cycloaliphatic or aromatic residue permissible or containing therein an oxygen or sulfur atom,
- (B.sub.4) cycloaliphatic or aromatic di(meth)acrylates represented by the general formula (II) ##STR44## in which R.sup.1 and R.sup.2 stand each for H or CH.sub.3 and R.sup.3 denotes a divalent cycloaliphatic or aromatic residue having at least one cyclic group and permissible of containing therein an oxygen or sulfur atom and
- (B.sub.5) cycloaliphatic di(meth)acrylates represented by the general formula (III) ##STR45## in which R.sup.1 and R.sup.2 stand each for H or CH.sub.3 and R.sup.3 denotes a divalent cycloaliphatic residue having at least one cyclic group and permissible of containing therein an oxygen or sulfur atom,
- (B.sub.6) polyfunctional monomers based on (meth)acrylate represented by the general formula (IV) ##STR46## in which R.sup.1 and R.sup.2 stand each for H or CH.sub.3, R.sup.3 denotes a divalent aromatic residue having at least one aromatic ring and being permissible of containing therein an oxygen or sulfur atom and n and m stand each for a positive integer and
- (B.sub.7) polyfunctional monomers based on (meth)acrylate having in the molecule at least one urethane linkage
- (C) an acidic group-containing monomer based on (meth)acrylate having in the molecule at least one (meth)acryloyloxyl group in an amount, on the weight basis, of from 1 to 50 parts per 100 parts of the sum of monomer (A)+(B); and
- (D) a trialkylboron or its oxide in an amount, on the weight basis, of from 2 to 100 parts of the sum of monomers (A)+(B)+(C);
- wherein, when cured, monofunctional layer (A) and polyfunctional monomer (B) compolymerize to produce a rigid, cross-linked, three-dimensional structure.
- 2. A curable composition according to claim 1, wherein the acidic group-containing monomer (C) based on (meth)acrylate consists of one or more monomers selected from the group consisting of
- (C.sub.1) aromatic polycarboxylic acids and anhydrides thereof having in the molecule at least one (meth)acryloyloxyl group and
- (C.sub.2) partial esters of phosphoric acid and esters of sulfonic acid each having in the molecule at least one (meth)acryloyloxyl group.
- 3. A curable composition according to claim 1, wherein the trialkylboron or its oxide (D) consists of one or more compounds selected from the group consisting of
- triethylboron, tripropylboron, triisopropylboron, tri-n-butylboron, tri-n-amylboron, triisoamylboron, tri-sec-amylboron and oxidation products of them.
- 4. A curable composition according to claim 1, wherein the proportion of the components (A), (B), (C) and (D) in the composition is in the range of 5-95% by weight for (A), 95-5% by weight for (B) and 1-50 parts by weight for (C), based on the weight of the sum (A)+(B), and 2-100 parts by weight for (D), based on the weight of the sum (A)+(B)+(C).
Priority Claims (3)
Number |
Date |
Country |
Kind |
61-256797 |
Oct 1985 |
JPX |
|
61-256798 |
Oct 1986 |
JPX |
|
308541 |
Dec 1986 |
JPX |
|
CROSS-REFERENCE TO RELATED APPLICATIONS
This application is a continuation of earlier application Ser. No. 07/109,035 filed Oct. 16, 1987, now abandoned.
US Referenced Citations (10)
Foreign Referenced Citations (1)
Number |
Date |
Country |
2000789 |
Jan 1979 |
GBX |
Continuations (1)
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Number |
Date |
Country |
Parent |
109035 |
Oct 1987 |
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