Curable molding compositions containing a poly(acrylate)

Claim 2

A curable molding composition comprising a mixture of: (a) A poly(acrylate) characterized by the following empirical formula: wherein R is the hydroxy-free residue of an organic polyhydric alcohol which contained alcoholic hydroxyl groups bonded to different carbon atoms, R 1 and R 2 are independently hydrogen or methyl, and n is 1 to 3, (b) an ethylenically unsaturated monomer which is soluble in andcopolymerizable with (a) and which is different from (a), and (c) a silane and/or siloxane.

Claim 3

A curable composition as defined in claim 1, wherein the poly(acrylate) is selected from one or more of the following: ethoxylated bisphenol A dimethacrylate, ethoxylated bisphenol A diacrylate, tetraethylene glycol dimethacrylate, diethylene glycol dimethacrylate, tetraethylene glycol diacrylate diethylene glycol diacrylate trimethylolpropane triacrylate, and trimethylolpropane trimethacrylate.

Claim 4

A curable composition as defined in claims 1 or 2, wherein the ethylenically unsaturated monomer comprises styrene.

Claim 5

A curable composition as defined in any of claims 1-3, wherein the silane is of the general formula: wherein R 3 is a monovalent aliphatically unsaturated hydrocarbon or hydrocarbonoxy radical, Y is a hydrolyzable group and R 4 is R 3 or Y.'

Claim 6

A curable composition as defined in claim 4, wherein R 3 is selected from vinyl, allyl, butenyl, cyclohexenyl, cyclopentadienyl, cyclohexadienyl, CH 2 =C(CH 3 )COO(CH 2 ) 3 -, and CH 2 =C(CH 3 )COOCH 2 CH 2 O(CH 2 ) 3 -, and Y is selected from an alkoxy radical, an acyloxy radical, oximo radical or a substituted amino radical.

Claim 7

A curable composition as defined in any of claims 1-5 wherein the silanes are of the following formulae:

Claim 8

or

Claim 9

or

Claim 10

A curable composition as defined in any of claims 1-5 wherein the siloxane is of the following formula:

Claim 11

A curable composition as defined in any of claims 1-7 which contains acrylic or methacrylic acid or a functionalized derivative thereof which is different from (a) and (b).

Claim 12

-9. A curable composition as defined in claims 8, wherein the functionalized derivative of acrylic or methacrylic acid is characterized by the following formula: wherein R 5 is independently hydrogen or methyl; X and Y are independently -0- or Whezein R 8 is hydrogen or lower alkyl; R 6 is an aliphatic or aromatic radical containing from 2 to about 10 carbon atoms, optionally containing -0- or R 7 is hydrogen or an aliphatic or aromatic radical containing from 1 to 10 carbon atomsy and a and b are integers of or greater than 1.

Claim 13

10 . A curable compostion as defined in claim 9 wherein the functionalized derivative is selected from one or more of the following: 2-hydroxyethyl acrylate, 2-hydroxyethyl methacrylate, hydroxypropyl acrylate, hydroxypropyl methacrylate, hydroxybutyl acrylate, hydroxybutyl methacrylate, 2-aminoethyl acrylate, 2-methylaminoethyl acrylate, 2-methylaminoethyl methacrylate, 2-dimethylaminoethyl acrylate, 2-dimethylaminoethyl methacrylate, 2-hydroxyethyl acrylamide, 2-hydroxyethyl methacrylamide, 2-aminoethyl acrylamide, 2-aminoethyl acrylamide, 2-aminoethyl methacrylamide, diethylene glycol monoacrylate, diethylene glycol monomethacrylate, 2-methoxyethyl acrylate, 2-methoxyethyl methacrylate, pentaerythritol monoacrylate, pentaerythritol monomethacrylate, pentaerythritol diacrylate, pentaerythritol triacrylate, glycerol monoacrylate, glycerol monomethylacrylate, trimethacrylate, glycidyl acrylate, glycidyl methacrylate, and hydroxymethyl acrylamide.

Claim 14

A curable composition as defined in any of claims 1-10, which contains a curing initiator, preferably (1) a perester and/or perketal, or a mixture of peresters and/or perketals, or (2) an azo and/or peroxide containing compound or (3) an azo compound and a perester and/or perketal.

Claim 15

A curable composition as defined in any of claims 1-11 which contains an acidic cure accelerator and/or an accelerator comprising a cobalt containing compound.

Claim 16

A molded article prepared from the composition of any of claims 1-12.

Claim 17

A molded article as defined in claim 13 which contains from about 10 to about 75 weight percent of one or more fibers having a melting point or a glass transition temperature above about 130°C, such as fiberglass, carbon fibers, aromatic polyamide fibers, and mixtures thereof.