Two part sizing composition for coating glass fibres and composite reinforced with such glass fibres
AssigneeDsm IP Assets B.V.
InventorsRonald Michaël Alexander Maria Schellekens, Luc Elza Florent Leemans, Frédéric Van Hoof, Nadia Masson
Life of this patent
Estimating the term…
Abstract
A pellet comprising glass fibers and a thermoplastic polyester matrix, wherein the glass fiber at least partially has been coated with a two-part sizing composition comprising: (C) A precursor comprising: (a) an aminosilane and (b) a polymer or copolymer containing carboxylic acid and/or anhydride, both having a functionality, F≧3, and (D) A binder comprising a multifunctional epoxy resin of functionality, F≧3, and wherein the pellet has been subjected to a solid state post condensation process (SSPC).
Claims13
A pellet comprising glass fibres and a thermoplastic polyester matrix, wherein the glass fibres are at least partially coated with a two-part sizing composition comprising:
- (A) a precursor comprising:
- (a) an aminosilane and
- (b) a polymer or copolymer containing carboxylic acid and/or anhydride, both having a functionality, F≧3, and
- (B) a binder comprising a multifunctional epoxy resin of functionality, F≧3, and wherein the pellet has been subjected to a solid state post condensation process (SSPC).
A pellet comprising glass fibres and a polyester matrix, wherein the glass fibres are at least partially coated with a two-part sizing composition comprising:
- (A) a precursor comprising:
- (a) an aminosilane, and
- (b) a polymer or copolymer containing carboxylic acid and/or anhydride, both having a functionality, F≧3, and
- (B) a binder comprising a multifunctional epoxy resin of functionality, F≧3, wherein the polyester matrix is a thermoplastic polyester containing a stabilizer selected from
- (i) polycarbodiimide and/or=(ii) an epoxy group containing stabilizer.
Dependencies are inferred from the claim text.