Acid terpolymer films or sheets and articles comprising the same
AssigneeE.I. du Pont de Nemours and Company
InventorsRICHARD ALLEN HAYES, Sam Louis Samuels
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Abstract
The present invention provides a safety laminate or solar cell module comprising an acid terpolymer containing film or sheet, wherein the acid terpolymer comprises copolymerized units derived from an α-olefin, about 15 to about 30 wt % of an α,β-ethylenically unsaturated carboxylic acid having 3 to 8 carbons, and about 0.5 to about 40 wt % of an α,β-ethylenically unsaturated carboxylic acid ester having 4 to 12 carbons, based on the total weight of the acid terpolymer.
Claims20
An article comprising a bi-layer film or sheet consisting of:
- (a) a first layer of an acid terpolymer composition, and
- (b) a second layer of a polymer material selected from the group consisting of acid copolymers, ionomers, ethylene vinyl acetates, poly(vinyl acetals), polyurethanes, polyvinylchlorides, polyethylenes, polyolefin block elastomers, poly(α-olefin-co-α,β-ethylenically unsaturated carboxylic acid ester) copolymers, silicone elastomers, epoxy resins, and combinations of two or more thereof;
- wherein the acid terpolymer comprises copolymerized units derived from an α-olefin, about 15 to about 30 wt % of an α,β-ethylenically unsaturated carboxylic acid having 3 to 8 carbons, and about 0.5 to about 40 wt % of an α,β-ethylenically unsaturated carboxylic acid ester having 4 to 12 carbons, based on the total weight of the acid terpolymer;
- and
- wherein the article is a safety glass laminate pre-lamination assembly containing an outer glass layer or a solar control pre-lamination assembly containing a glass incident layer, and wherein the first layer is adjacent the glass sheet.
The article of claim 12, wherein the solar cell is selected from the group consisting of multi-crystalline solar cells, thin film solar cells, compound semiconductor solar cells, amorphous silicon solar cells, and combinations of two or more.
The process of claim 17, wherein the laminating step is conducted by subjecting the assembly to heat.
The process of claim 18, wherein the laminating step further comprises subjecting the assembly to vacuum or pressure.
A safety glass laminate comprising (a) at least one outer glass sheet having a tin side and (b) as an interlayer a bi-layer film or sheet consisting of:
- (a) a first layer of an acid terpolymer composition, and
- (b) a second layer of a polymer material selected from the group consisting of acid copolymers, ionomers, ethylene vinyl acetates, poly(vinyl acetals), polyurethanes, polyvinylchlorides, polyethylenes, polyolefin block elastomers, poly(α-olefin-co-α,β-ethylenically unsaturated carboxylic acid ester) copolymers, silicone elastomers, epoxy resins, and combinations of two or more thereof;
- wherein the acid terpolymer comprises copolymerized units derived from an α-olefin, about 15 to about 30 wt % of an α,β-ethylenically unsaturated carboxylic acid having 3 to 8 carbons, and about 0.5 to about 40 wt % of an α,β-ethylenically unsaturated carboxylic acid ester having 4 to 12 carbons, based on the total weight of the acid terpolymers;
- and
- wherein the first layer is in contact with the tin side of the glass sheet.
A safety glass laminate comprising sequentially:
- (a) an outer glass layer having a tin side;
- (b) a layer of an acid terpolymer composition, wherein the acid terpolymer comprises copolymerized units derived from an α-olefin, about 15 to about 30 wt % of an α,β-ethylenically unsaturated carboxylic acid having 3 to 8 carbons, and about 0.5 to about 40 wt % of an α,β-ethylenically unsaturated carboxylic acid ester having 4 to 12 carbons, based on the total weight of the acid terpolymers;
- (c) a layer of a polymer material selected from the group consisting of acid copolymers, ionomers, ethylene vinyl acetates, poly(vinyl acetals), polyurethanes, polyvinylchlorides, polyethylenes, polyolefin block elastomers, poly(α-olefin-co-α,β-ethylenically unsaturated carboxylic acid ester) copolymers, silicone elastomers, epoxy resins, and combinations of two or more thereof;
- and
- (d) a second outer layer of a polyester film which is optionally hardcoated on the outside surface.
Dependencies are inferred from the claim text.