Method of preparing curable coating composition from alcohol, colloidal silica, silylacrylate and multiacrylate monomer
First Claim
1. A method for making a solventless hardcoat composition which comprises(1) agitating a mixture of a water miscible alcohol, colloidal silica and a silyl acrylate of the formula, ##STR4## (2) adding acrylic monomer of the formula,
to the resulting mixture of (1) and(3) effecting removal of volatiles under reduced pressure from the mixture of (2) where R is a C.sub.(1-13) monovalent organic radical, R1 is a C.sub.(1-8) alkyl radical, R2 is selected from hydrogen, R and mixtures thereof, R3 is C.sub.(1-8) alkylene, a is a whole number equal to 0-2 inclusive, b is an integer equal to 1-3 inclusive, and the sum of a+b is equal to 3 and n is an integer from 2 to 4 inclusive.
CR.sup.2 --C--O].sub.n R.sup.4,
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Abstract
UV curable coating compositions are provided based on the use of photoinitiator with the hydrolysis product of silylacrylate and aqueous colloidal silica. The UV curable silicone coating compositions also can contain polyfunctional acrylate. The UV curable hardcoat composition can be applied onto various substrates, for example, a polycarbonate substrate, and thereafter cured under UV radiation to produce adherent and abrasion resistant coated articles.
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Citations
5 Claims
- 1. A method for making a solventless hardcoat composition which comprises
(1) agitating a mixture of a water miscible alcohol, colloidal silica and a silyl acrylate of the formula, ##STR4## (2) adding acrylic monomer of the formula, - space="preserve" listing-type="equation">[(R.sup.2).sub.2 C═
CR.sup.2 --C--O].sub.n R.sup.4,
to the resulting mixture of (1) and (3) effecting removal of volatiles under reduced pressure from the mixture of (2) where R is a C.sub.(1-13) monovalent organic radical, R1 is a C.sub.(1-8) alkyl radical, R2 is selected from hydrogen, R and mixtures thereof, R3 is C.sub.(1-8) alkylene, a is a whole number equal to 0-2 inclusive, b is an integer equal to 1-3 inclusive, and the sum of a+b is equal to 3 and n is an integer from 2 to 4 inclusive. - View Dependent Claims (2, 3, 4, 5)
- space="preserve" listing-type="equation">[(R.sup.2).sub.2 C═
Specification
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- Resources
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Current AssigneeGeneral Electric Company
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Original AssigneeGeneral Electric Company
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InventorsOlson, Daniel R., Webb, Karen K.
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Primary Examiner(s)Marquis, Melvyn I.
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Assistant Examiner(s)KOECKERT JR, ARTHUR
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Application NumberUS06/459,905Time in Patent Office711 DaysField of Search204/159.13, 528/26, 528/32, 528/39, 526/279, 524/806US Class Current522/44CPC Class CodesC08F 222/102 of dialcohols, e.g. ethylen...C08F 222/103 of trialcohols, e.g. trimet...C09D 4/00 Coating compositions, e.g. ...Y10T 428/31507 Of polycarbonate
