One-part primerless adhesive
AssigneeEssex Specialty Products, Inc.
InventorJu-Ming Hung
Life of this patent
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Abstract
Disclosed herein is a one-part adhesive which comprises a mixture of: (a) a polymerizable ethylenically unsaturated urethane polymer; and (b) a polymerizable ethylenically unsaturated acid, acid salt, or acid anhydride wherein component (b) is present in an amount in the range of from about 0.5 weight percent to about 50 weight percent of component (a). Such an adhesive is especially suitable for bonding components together in the manufacture of automobiles, and is particularly suitable for bonding sheet molding compound (SMC) components to metal or to other SMC components.
Claims17
A one-part adhesive which comprises a mixture of:
- (a) a polymerizable ethylenically unsaturated urethane polymer:
- and
- (b) a polymerizable ethylenically unsaturated acid, acid salt, or acid anhydride
- wherein component (b) is present in an amount in the range of from about 0.5 weight percent to about 25 weight percent of component (a).
A composite comprising a fiberglass-reinforced polyester substrate bonded to a second substrate, by means of a cured layer of a one-part adhesive between said substrates comprising a mixture of
- (a) a polymerizable ethylenically unsaturated urethane polymer;
- and
- (b) a polymerizable ethylenically unsaturated acid, acid salt, or acid anhydride
- wherein component (b) is present in an amount in the range of from 0.5 to 50 weight percent of component (a).
Dependencies are inferred from the claim text.