Invention Application
WO2013017471A3 SIZING COMPOSITION FOR CHARGES USED IN THERMOPLASTIC POLYMERIC MATERIAL REINFORCEMENT, REINFORCED POLYMERIC MATERIALS AND METHOD OF MANUFACTURE
审中-公开
用于热塑性聚合物材料加固的电荷尺寸组合物，增强聚合材料及其制造方法
- Patent Title: SIZING COMPOSITION FOR CHARGES USED IN THERMOPLASTIC POLYMERIC MATERIAL REINFORCEMENT, REINFORCED POLYMERIC MATERIALS AND METHOD OF MANUFACTURE
- Patent Title (中): 用于热塑性聚合物材料加固的电荷尺寸组合物，增强聚合材料及其制造方法
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Application No.: PCT/EP2012064468Application Date: 2012-07-24
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Publication No.: WO2013017471A3Publication Date: 2013-04-18
- Inventor: MASSON NADIA , PIRET WILLY
- Applicant: 3B FIBREGLASS SPRL , MASSON NADIA , PIRET WILLY
- Assignee: 3B FIBREGLASS SPRL,MASSON NADIA,PIRET WILLY
- Current Assignee: 3B FIBREGLASS SPRL,MASSON NADIA,PIRET WILLY
- Priority: EP11176308 2011-08-02
- Main IPC: C08L63/00
- IPC: C08L63/00 ; B29B15/12 ; C03C17/00 ; C03C25/26 ; C08J5/08 ; C08L75/04
Abstract:
The invention relates to an aqueous sizing composition for reinforcing charges, preferably glass fibers, comprising a silane coupling agent, an epoxy film forming polymer comprising 2-8 reactive epoxy groups per chain and compatible with thermoplastic polyester matrix resin selected from PET and PBT, and a hypophosphite in an amount of 5 to 30 w% of the composition, preferably 7 to 25 w%, more preferably 10 to 20 w% and most preferably 12 to 18 w% of the composition. A thermoplastic polyester resin reinforced with glass fibers coated with a sizing composition of the invention shows improved resistance to staining and improved tensile elongation at break. The sizing composition further improves processability of the sized fibres.
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