Acrylic adhesive composition and organoboron initiator system
First Claim
Patent Images
1. A curable two-part adhesive composition wherein one-part comprises a polymerizable acrylic monomer and an effective amount of a stabilized organoboron amine complex initiator of the formula:
- ##STR14## where R, R1 and R2 are alkyl of 1 to 10 carbon atoms or phenyl, R3 and R4 are hydrogen or alkyl of 1 to 10 carbon atoms, or ##STR15## where R5 and R6 are hydrogen or alkyl of 1 to 10 carbon atoms, m is 2 to 10 and n is 1 to 6; and
the second part contains an effective destablizing amount of an organic acid activator having the formula;
space="preserve" listing-type="equation">R--COOOHwhere R is H, alkyl or alkenyl of 1 to 8 carbons or aryl of 6 to 14 carbon atoms.
1 Assignment
0 Petitions
Accused Products
Abstract
A two-part initiator system useful in acrylic adhesive compositions comprising in one-part a stable organoboron amine complex and in the second part an organic acid destabilizer or activator. This initiator is particularly useful in elastomeric acrylic adhesive compositions and provides a fast, room temperature cure with good stability and exhibiting both high tensile strength and high peel strength.
-
Citations
14 Claims
-
1. A curable two-part adhesive composition wherein one-part comprises a polymerizable acrylic monomer and an effective amount of a stabilized organoboron amine complex initiator of the formula:
- ##STR14## where R, R1 and R2 are alkyl of 1 to 10 carbon atoms or phenyl, R3 and R4 are hydrogen or alkyl of 1 to 10 carbon atoms, or ##STR15## where R5 and R6 are hydrogen or alkyl of 1 to 10 carbon atoms, m is 2 to 10 and n is 1 to 6; and
the second part contains an effective destablizing amount of an organic acid activator having the formula;
space="preserve" listing-type="equation">R--COOOHwhere R is H, alkyl or alkenyl of 1 to 8 carbons or aryl of 6 to 14 carbon atoms. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14)
- ##STR14## where R, R1 and R2 are alkyl of 1 to 10 carbon atoms or phenyl, R3 and R4 are hydrogen or alkyl of 1 to 10 carbon atoms, or ##STR15## where R5 and R6 are hydrogen or alkyl of 1 to 10 carbon atoms, m is 2 to 10 and n is 1 to 6; and
Specification