Novel adhesives and tapes including same
AssigneeThe Kendall Company
InventorSamuel J. Chen
Life of this patent
Estimating the term…
Abstract
Novel adhesives for preparing metal foil adhesive tapes meeting Underwriter Laboratories requirements for use with rigid fiberglass air ducts, which adhesive comprises a copolymer of: (1) at least one activated ester-containing vinyl monomer of Formula I (as defined hereinafter); (2) at least one ethylenically unsaturated carboxylic acid containing 3-5 carbon atoms; (3) at least one acrylic or methacrylic acid ester of a non-tertiary alcohol having 1-14 carbon atoms; and (4) at least one vinyl ester of a saturated carboxylic acid, said polymer being crosslinked with a crosslinking agent reactive with the carboxylic acid moiety through its reactive hydrogen atom; and adhesive tapes prepared therefrom.
Claims13
A metal foil tape meeting Underwriters Laboratories criteria for use with rigid fiberglass air ducts, said tape comprising a metal foil backing sheet carrying a layer of an adhesive composition comprising a crosslinked copolymer of:
- (1) an activated ester-containing vinyl monomer of the formula:
- ##STR4## wherein R is hydrogen or methyl;
- and R' is alkyl having one to six carbon atoms, or 2-hydroxyalkyl having two to six carbon atoms;
- (2) at least one ethylenically unsaturated carboxylic acid containing 3-5 carbon atoms;
- (3) at least one acrylic or methacrylic acid ester of a non-tertiary alcohol having 1-14 carbon atoms;
- and
- (4) at least one vinyl ester of a saturated carboxylic acid.
A metal foil tape meeting Underwriter Laboratories criteria for use with rigid fiberglass air ducts, said tape comprising a metal foil backing sheet carrying a layer of an adhesive composition comprising a crosslinked copolymer of:
- (1) from about 3 to about 20 parts by weight of an activated ester-containing vinyl monomer of the formula:
- ##STR5## wherein R is hydrogen or methyl;
- and R' is alkyl having one to six carbon atoms, or 2-hydroxyalkyl having two to six carbon atoms;
- (2) from about 3 to about 10 parts by weight of at least one ethylenically unsaturated carboxylic acid selected from the group consisting of acrylic acid, methacrylic acid, itaconic acid, maleic acid and fumaric acid;
- (3) from about 70 to about 85 parts by weight of at least one acrylic or methacrylic acid ester of a non-tertiary alcohol having 1 to 14 carbon atoms selected from the group consisting of 1-butanol, 1-pentanol, 2-pentanol, 3-pentanol, 2-methyl-1-butanol, 2-ethyl-1-hexanol, 1-methyl-1-butanol, 1-methyl-1-pentanol, 2-methyl-1-pentanol, 3-methyl-1-pentanol, 2-ethyl-1-butanol, 3,5,5-trimethyl-1-hexanol, 3-heptanol,2-octanol,1-decanol and 1-dodecanol;
- and
- (4) from about 7 to about 22 parts by weight of at least one vinyl ester of a saturated carboxylic acid selected from the group consisting of vinyl acetate, vinyl propionate, vinyl butyrate and vinyl valerate;
- said copolymer being crosslinked with a crosslinking agent reactive with said carboxylic acid moiety through its are reactive hydrogen atom.
An adhesive tape comprising a backing sheet material carrying a layer of an adhesive composition adapted for meeting Underwriters Laboratories specifications for metal foil adhesive tapes for use with rigid fiberglass air ducts, said composition comprising a copolymer of:
- (1) an activated ester-containing vinyl monomer of the formula:
- ##STR6## wherein R is hydrogen or methyl;
- and R' is alkyl having one to six carbon atoms, or 2-hydroxyalkyl having two to six carbon atoms;
- (2) at least one ethylenically unsaturated carboxylic acid containing 3-5 carbon atoms;
- (3) at least one acrylic or methacrylic acid ester of a non-tertiary alcohol having 1-14 carbon atoms and;
- (4) at least one vinyl ester of a saturated carboxylic acid;
- said polymer being crosslinked with a crosslinking agent reactive with the carboxylic acid moiety through its reactive hydrogen atom.
An adhesive tape comprising a backing sheet material carrying a layer of an adhesive composition adapted for meeting Underwriters Laboratories specifications for metal foil adhesive tapes for use with rigid fiberglass air ducts, said composition comprising a copolymer of:
- (1) from about 3 to about 20 parts by weight of an activated ester-containing vinyl monomer of the formula:
- ##STR7## wherein R is hydrogen or methyl;
- and R' is alkyl having one to six carbon atoms, or 2-hydroalkyl having two to six carbon atoms;
- (2) from about 3 to about 10 parts by weight of at least one ethylenically unsaturated carboxylic acid selected from the group consisting of acrylic acid, methacrylic acid, itaconic acid, maleic acid and fumaric acid;
- (3) from about 70 to about 85 by weight of at least on acrylic or methacrylic acid ester of a non-tertiary alcohol having 1 to 14 carbon atoms selected from the group consisting of 1-butanol, 1-pentanol, 2-pentanol, 3-pentanol, 2-methyl-1-butanol, 2-ethyl-1-hexanol, 1-methyl-1-pentanol, 3-methyl-1pentanol, 2-ethyl-1-butanol, 3,5,5-trimethyl-1-hexanol, 3-heptanol, 2-octanol, 1-decanol and 1-dodecanol;
- and
- (4) from about 7 to about 22 parts by weight of at least one vinyl ester of a saturated carboxylic acid selected from the group consisting of vinyl acetate, vinyl propionate, vinyl butyrate and vinyl valerate;
- said copolymer being crosslinked with a crosslinking agent reactive with said carboxylic acid moiety through its are reactive hydrogen atom.
Dependencies are inferred from the claim text.