FLAME RETARDANT POLYMER COMPOSITIONS
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Abstract
Flame retardant compositions are disclosed which comprise (a) at least one particulate material which expands on the application of heat and (b) at least one particulate nano-filler, together with at least one polymer and/or at least one curable monomer or oligomer. The compositions may also contain certain silicon-based materials. Flame-retardant compositions comprising polyorganosiloxanes containing one or more functional groups selected from amino, hydroxyl, methacrylic, acrylic and epoxy groups, are also disclosed.
30 Citations
45 Claims
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1-29. -29. (canceled)
- 30. A composition comprising (a) at least one expandable particulate material which expands on the application of heat and (b) at least one particulate intercalated nano-clay, together with at least one polymer and/or at least one curable monomer or oligomer.
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40. A cured article which comprises a polymer matrix in association with at least one expandable particulate material which expands on the application of heat and at least one intercalated nano-clay.
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41. A process for the manufacture of a cured article which comprises admixing at least one expandable particulate material which expands on the application of heat with at least one intercalated nano-clay and at least one curable monomer, oligomer and/or polymer to form a mixture and subsequently curing the mixture.
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43. A composition comprising (i) one or more reactive monomers, oligomers and/or polymers containing reactive species selected from the group consisting of:
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a. epoxy-functional compounds and resins in combination with amino-functional compounds, resins, oligomers, or polymers; b. hydroxy-functional compounds, oligomers, polymers in combination with isocyanate-functional monomers, dimers, oligomers, or polymers; c. methacrylic or acrylic functional monomers in combination with methacrylic or acrylic functional oligomers or polymers; d. amino-functional polyorganosiloxane in combination with epoxy-functional compounds, resins or oligomers; e. hydroxy-functional polyorganosiloxane in combination with isocyanate-functional monomers, dimers or oligomers; f. methacrylated or acrylated polyorganosiloxane; g. epoxy-functional compounds and resins and amino-functional compounds, resins, oligomers, or polymers in combination with amino-functional polyorganosiloxane and epoxy-functional compounds, resins or oligomers; h. hydroxy-functional compounds, oligomers, or polymers and isocyanate-functional monomers, dimers, oligomers, or polymers in combination with hydroxy-functional polyorganosiloxane and isocyanate-functional monomers, dimers or oligomers; and i. methacrylic or acrylic functional monomers, oligomers or polymers in combination with methacrylated or acrylated polyorganosiloxane; (ii) expandable graphite;
(iii) intercalated nano-clay; and
optionally (iv) one or more flame retardant additives and smoke suppressants selected from the group consisting of zinc borate, aluminum trihydroxide, and ammonium octamolybdate.- View Dependent Claims (44, 45)
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Specification