Polymeric coating for protection of glass substrate
First Claim
1. As an article of manufacture, a glass container at least partially coated with a single protective polymeric film having a thickness of at least 0.002 inch and sufficient to resist glass shattering of the container under pressure, the crosslinked film having been formed in situ on the glass container from a composition consisting of about 70% to about 98.99% by weight of at least one rubbery thermoplastic organic polymer, about 0.01% to about 10% by weight of at least one peroxidic organic compound, and about 1% to about 29.99% by weight of at least one polyfunctional monomer;
- said polymer being an elastomeric organic polymer having an ultimate elongation of at least 100%, being crosslinkable and being selected from the group consisting of ethylene-vinyl acetate copolymers, hydrolyzed ethylene-vinyl acetate copolymers, ethylene-ethyl acrylate copolymers, ethylene-acrylic acid copolymers and their salts, ethylene-propylene copolymers, styrene-butadiene copolymers including both block and random copolymers, styrene-isoprene copolymers, acrylonitrile-butadiene copolymers, isobutylene-isoprene copolymers, polyurethane thermoplastic polyesters, ethylene-propylene-diene terpolymers, styrene-ethylene-butylene block terpolymers, polypentenamers, and polyamides derived from a dimer acid;
said peroxidic organic compound possessing at least one oxygen-oxygen bond; and
said polyfunctional monomer being a polymerizable ethylenically unsaturated monomer having a functionality of at least two.
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Abstract
In accordance with this invention, a basic three-component chemically convertible polymeric coating composition is applied to the surface of a glass substrate and subsequently converted to a crosslinked coating by the application of heat or another form of energy. The polymeric coating composition contains at least three essential ingredients:
1. a rubbery thermoplastic organic polymer;
2. an organic peroxide or hydroperoxide; and
3. a polymerizable ethylenically unsaturated monomer having a functionality of at least two.
94 Citations
3 Claims
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1. As an article of manufacture, a glass container at least partially coated with a single protective polymeric film having a thickness of at least 0.002 inch and sufficient to resist glass shattering of the container under pressure, the crosslinked film having been formed in situ on the glass container from a composition consisting of about 70% to about 98.99% by weight of at least one rubbery thermoplastic organic polymer, about 0.01% to about 10% by weight of at least one peroxidic organic compound, and about 1% to about 29.99% by weight of at least one polyfunctional monomer;
- said polymer being an elastomeric organic polymer having an ultimate elongation of at least 100%, being crosslinkable and being selected from the group consisting of ethylene-vinyl acetate copolymers, hydrolyzed ethylene-vinyl acetate copolymers, ethylene-ethyl acrylate copolymers, ethylene-acrylic acid copolymers and their salts, ethylene-propylene copolymers, styrene-butadiene copolymers including both block and random copolymers, styrene-isoprene copolymers, acrylonitrile-butadiene copolymers, isobutylene-isoprene copolymers, polyurethane thermoplastic polyesters, ethylene-propylene-diene terpolymers, styrene-ethylene-butylene block terpolymers, polypentenamers, and polyamides derived from a dimer acid;
said peroxidic organic compound possessing at least one oxygen-oxygen bond; and
said polyfunctional monomer being a polymerizable ethylenically unsaturated monomer having a functionality of at least two. - View Dependent Claims (2, 3)
- said polymer being an elastomeric organic polymer having an ultimate elongation of at least 100%, being crosslinkable and being selected from the group consisting of ethylene-vinyl acetate copolymers, hydrolyzed ethylene-vinyl acetate copolymers, ethylene-ethyl acrylate copolymers, ethylene-acrylic acid copolymers and their salts, ethylene-propylene copolymers, styrene-butadiene copolymers including both block and random copolymers, styrene-isoprene copolymers, acrylonitrile-butadiene copolymers, isobutylene-isoprene copolymers, polyurethane thermoplastic polyesters, ethylene-propylene-diene terpolymers, styrene-ethylene-butylene block terpolymers, polypentenamers, and polyamides derived from a dimer acid;
Specification