发明名称 |
SIZING COMPOSITION FOR CHARGES USED IN THERMOPLASTIC POLYMERIC MATERIAL REINFORCEMENT, REINFORCED POLYMERIC MATERIALS AND METHOD OF MANUFACTURE |
摘要 |
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. |
申请公布号 |
EP2739683(A2) |
申请公布日期 |
2014.06.11 |
申请号 |
EP20120737829 |
申请日期 |
2012.07.24 |
申请人 |
3B-FIBREGLASS SPRL |
发明人 |
MASSON, NADIA;PIRET, WILLY |
分类号 |
C08L63/00;B29B15/12;C03C17/00;C03C25/26;C08J5/08;C08L75/04 |
主分类号 |
C08L63/00 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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