ABRASION RESISTANT PLASTIC GLAZING WITH IN-MOLD COATING
First Claim
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1. A method of manufacturing a plastic glazing assembly exhibiting weatherability and abrasion resistance comprising the steps of:
- injecting a plastic resin into a mold to form a plastic part having an A-side and a B-side;
applying a coating to at least one side of the plastic part while the plastic part is in the mold;
curing the coating on the plastic part to form a coated part having a cured coating thereon;
removing the coated part from the mold; and
depositing an abrasion resistant layer over the coating of the coated part;
wherein the cured coating has a substantially uniform and constant thickness; and
wherein the abrasion resistant layer has a substantially uniform and constant thickness.
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Abstract
This invention relates to plastic glazing assemblies for vehicle tops, windows, headlamps, and taillights, as well as residential and commercial glazing, aircraft glazing, and sunglasses. More specifically, a method of manufacturing a plastic glazing assembly exhibiting a high level of weatherability and abrasion resistance is disclosed which integrates the in-mold application of a coating and the subsequent deposition of an abrasion resistant layer to a molded plastic part.
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Citations
30 Claims
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1. A method of manufacturing a plastic glazing assembly exhibiting weatherability and abrasion resistance comprising the steps of:
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injecting a plastic resin into a mold to form a plastic part having an A-side and a B-side; applying a coating to at least one side of the plastic part while the plastic part is in the mold; curing the coating on the plastic part to form a coated part having a cured coating thereon; removing the coated part from the mold; and depositing an abrasion resistant layer over the coating of the coated part; wherein the cured coating has a substantially uniform and constant thickness; and wherein the abrasion resistant layer has a substantially uniform and constant thickness. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23)
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24. The method of manufacturing a plastic glazing assembly exhibiting weatherability and abrasion resistance comprising the steps of:
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applying a coating to at least one surface of a mold; placing and pressing a barrier film against the coating, the barrier film having no affinity for the coating and preventing the coating from being exposed to oxygen prior to being cured; curing the coating; removing the barrier film; closing the mold; injecting a plastic resin into a mold to form a coated part; removing the coated part from the mold; and depositing an abrasion resistant layer over the coating of the coated part. - View Dependent Claims (25, 26, 27, 28, 29, 30)
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Specification