Methods for benefitting polymers
First Claim
Patent Images
1. A method for incorporating a UV light absorbing constituent into a polymer material which comprises:
- introducing a reactable UV light absorbing component including a functional group selected from the class consisting of functional silicon-bonded hydride groups and functional ethylenically unsaturated groups into a polysiloxane polymer which is solid and cross-linked and contains reactable groups selected from the class consisting of reactable silicon-bonded hydride groups and reactable ethylenically unsaturated groups; and
, thereafter,subjecting said reactable UV light absorbing component to conditions effective to chemically react said reactable UV light absorbing component with said reactable groups of said polysiloxane polymer and form a polymer material to which is covalently bonded an effective amount of a UV light absorbing constituent derived from said reactable UV light absorbing component.
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Abstract
Methods for incorporating beneficial components into polymeric materials are disclosed. In one embodiment, the method comprises introducing a reactable UV light absorbing component into a cross-linked and/or solid polymeric material containing reactable groups, and subjecting the reactable UV light absorbing component to conditions effective to chemically react the reactable UV light absorbing component with the reactable groups of the solid polymeric material.
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Citations
17 Claims
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1. A method for incorporating a UV light absorbing constituent into a polymer material which comprises:
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introducing a reactable UV light absorbing component including a functional group selected from the class consisting of functional silicon-bonded hydride groups and functional ethylenically unsaturated groups into a polysiloxane polymer which is solid and cross-linked and contains reactable groups selected from the class consisting of reactable silicon-bonded hydride groups and reactable ethylenically unsaturated groups; and
, thereafter,subjecting said reactable UV light absorbing component to conditions effective to chemically react said reactable UV light absorbing component with said reactable groups of said polysiloxane polymer and form a polymer material to which is covalently bonded an effective amount of a UV light absorbing constituent derived from said reactable UV light absorbing component. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9)
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10. A method for incorporating a UV light absorbing component into a polymeric material which comprises:
contacting a reactable UV light absorbing component including a functional group selected from the class consisting of functional silicon-bonded hydride groups and functional ethylenically unsaturated groups with a polysiloxane polymer which is solid and cross-linked and which contains reactable groups selected from the class consisting of reactable silicon-bonded hydride groups and reactable ethylenically unsaturated groups at conditions effective to chemically react said reactable UV light absorbing component with the reactable groups of said polysiloxane polymer.
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11. A method for incorporating a beneficial constituent into a polymer material which comprises:
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introducing a reactable beneficial component including a functional group selected from the class consisting of functional silicon-bonded hydride groups and functional ethylenically unsaturated groups into a polymeric material which is a cross-linked and solid polysiloxane including reactable groups selected from the class consisting of reactable silicon-bonded hydride groups and reactable ethylenically unsaturated groups; and
, thereafter,subjecting said reactable beneficial component to conditions effective to chemically react said reactable beneficial component with said reactable groups of said polymeric material, thereby forming a polymer material to which is covalently bonded a beneficial constituent derived from said reactable beneficial component in an amount effective to provide a benefit to said polymer material. - View Dependent Claims (12, 13, 14, 15, 16)
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17. A method for incorporating a beneficial constituent into a polymer material which comprises:
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introducing a reactable beneficial component including a functional group selected from the class consisting of functional silicon-bonded hydride groups and functional ethylenically unsaturated groups into a polymeric material which is a solid and cross-linked polysiloxane containing reactable groups selected from the class consisting of reactable silicon-bonded hydride groups and reactable ethylenically unsaturated groups; and
, thereafter,subjecting said reactable beneficial component to conditions effective to chemically react said reactable beneficial component with said reactable groups of said polymeric material, thereby forming a polymer material to which is covalently bonded a beneficial constituent derived from said reactable beneficial component in an amount effective to provide a benefit to said polymer material, provided that said subjecting is substantially ineffective to increase or decrease the degree of polymerization or the degree of cross-linking of said polymeric material, and said polymer material is utilized without further substantial polymerization or cross-linking.
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Specification