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US 9,045,672 B2Granted
Dual cure adhesive useful for bonding to glass
AssigneeDow GlobalTechnologies LLC
InventorsGary L. Jialanella, Lirong Zhou
Life of this patent
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Abstract
The present invention is a composition comprising: a) one or more isocyanate functional prepolymers; b) one or more compounds containing a cycloaliphatic tertiary amine; c) one or more compounds containing a peroxide group; and d) one or more acrylate containing components. The system can be used in the form of a two part adhesive or in the form of a one part adhesive and an activator adapted to be applied to the surface of one or more of the substrates to which the adhesive is to be bonded.
Claims15
A composition comprising:
- a) one or more isocyanate functional prepolymers containing free acrylate groups wherein the isocyanate functional prepolymers are derived from aromatic isocyanates and the free acrylate content of the isocyanate functional prepolymers is about 1.0 to about 20 percent by weight;
- b) one or more compounds containing a cycloaliphatic tertiary amine;
- c) one or more compounds containing a peroxide group;
- and,
- d) one or more acrylate containing components comprising one or more compounds having acrylate groups and no isocyanate groups or one or more adducts of a polyisocyanate and one or more compounds containing one or more acrylate groups and one or more active hydrogen containing groups;
- wherein components a) and b) are kept separate from component c) unto cure is desired.
3 more elements
A two part composition comprising:
- in one part
- a) one or more isocyanate functional prepolymers derived from aromatic isocyanates;
- c) one or more compounds containing a peroxide group;
- and,
- d) one or more acrylate containing components which comprise one or more compounds having acrylate groups and no isocyanate groups or one or more adducts of a polyisocyanate and one or more compounds containing one or more acrylate groups and one or more active hydrogen containing groups;
- and
- in a second part b) one or more compounds containing a cycloaliphatic tertiary amine;
- wherein the weight ratio of one or more compounds containing a peroxide group to the one or more compounds containing a cycloaliphatic tertiary amine is from about 50.0:1.0 to about 100:1.0.
5 more elements
Dependencies are inferred from the claim text.