Method of forming a cured coating composition on an automobile component
First Claim
1. A method of polymerizing a radical polymerizable compound using an organoborane initiator, said method comprising the steps of:
- A. introducing the radical polymerizable compound and the organoborane initiator onto a substrate to form a mixture wherein the organoborane initiator is complexed with a bi-functional noncyclic blocking agent having a carbon backbone and two organoborane complexing moieties different from each other and selected from the group of an amine moiety, a thiol moiety, and a phosphine moiety and wherein the two differing moieties are separated from each other by two to four carbon atoms to increase nucleophilicity of the blocking agent towards the organoborane initiator thereby allowing the blocking agent to more completely interact with the organoborane initiator;
B. decomplexing the organoborane initiator from the blocking agent thereby forming a radical; and
C. polymerizing the radical polymerizable compound using the radical, at a temperature of from 20°
C. to 30°
C.
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Accused Products
Abstract
A method of forming a cured coating composition on an automobile component is provided. The method utilizes a coating compound including a radical polymerizable compound and an organoborane initiator and includes the step of applying the coating composition to the automobile component. The organoborane initiator is complexed with a bi-functional noncyclic blocking agent that has a carbon backbone and two organoborane complexing moieties. The two moieties are different from each other and are selected from the group of an amine moiety, a thiol moiety, and a phosphine moiety. In addition, the two moieties are separated from each other by two to four carbon atoms to increase the nucleophilicity of the blocking agent towards the organoborane initiator. The organoborane initiator is decomplexed from the blocking agent thereby forming a radical that is used to polymerize the radical polymerizable compound and cure the coating composition on the automobile component.
16 Citations
22 Claims
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1. A method of polymerizing a radical polymerizable compound using an organoborane initiator, said method comprising the steps of:
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A. introducing the radical polymerizable compound and the organoborane initiator onto a substrate to form a mixture wherein the organoborane initiator is complexed with a bi-functional noncyclic blocking agent having a carbon backbone and two organoborane complexing moieties different from each other and selected from the group of an amine moiety, a thiol moiety, and a phosphine moiety and wherein the two differing moieties are separated from each other by two to four carbon atoms to increase nucleophilicity of the blocking agent towards the organoborane initiator thereby allowing the blocking agent to more completely interact with the organoborane initiator; B. decomplexing the organoborane initiator from the blocking agent thereby forming a radical; and C. polymerizing the radical polymerizable compound using the radical, at a temperature of from 20°
C. to 30°
C. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15)
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16. A radical polymerizable automotive coating composition comprising:
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A. a radical polymerizable compound; and B. an organoborane initiator complexed with a bi-functional noncyclic blocking agent having a carbon backbone and two organoborane complexing moieties different from each other and selected from said group of an amine moiety, a thiol moiety, and a phosphine moiety and wherein said two differing moieties are separated from each other by two to four carbon atoms to increase nucleophilicity of said blocking agent towards said organoborane initiator thereby allowing the blocking agent to more completely interact with the organoborane initiator. - View Dependent Claims (17, 18, 19, 20, 21, 22)
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Specification