Conformal coating and potting system
First Claim
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1. A one-part coating composition, especially useful for conformal coating and potting, comprising:
- (1) At least one isocyanate-capped polyether diol and triol;
(2) An acrylate or methacrylate reactive diluent; and
(3) A polymerization initiator of the photo-initiator type.
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Abstract
Ultraviolet curable polymerizable coating system having a built-in secondary curing mechanism is disclosed. The polymerizable coating system is a one component system comprising at least one isocyanate-capped polyether diol and triol, an acrylate or methacrylate reactive diluent, and a polymerization initiator of the photo-initiator type. The coating system is also moisture curable.
52 Citations
18 Claims
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1. A one-part coating composition, especially useful for conformal coating and potting, comprising:
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(1) At least one isocyanate-capped polyether diol and triol; (2) An acrylate or methacrylate reactive diluent; and (3) A polymerization initiator of the photo-initiator type. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 17, 18)
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14. A method of forming a uv curing polymerizable conformal coating or potting on a substrate wherein said substrate has one or more shadow areas, comprising the steps in sequence of:
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(1) providing a polymerizable coating composition which comprises at least one isocyanate-capped polyether diol and triol, an acrylate or methacrylate reactive diluent, and a polymerization initiator of the photo-initiator part; (2) applying said coating composition to said substrate; (3) exposing the coated substrate to uv light of wave length and intensity to effect uv cure of exposed areas of said coating; and (4) storing said coated substrate under conditions of temperature and humidity such as to promote curing of unexposed (shadow) areas of said coating through a built-in secondary cure mechanism. - View Dependent Claims (15, 16)
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Specification