| 摘要 |
The present invention concerns a sizing composition for glass fibres comprising: (a) A silane based coupling agent mixture, (b) A film former, (c) Additives, Characterized in that, the silane based coupling agent mixture comprises (d) At least 15 wt. % of at least one dialkoxysilane, and (e) At least 20 wt. % of at least one unsaturated ester silane comprising an olefinic double bond activated by an ester function̂, Wherein R can be —H, —CH3, —C2H5, wherein R′ can be —H, CH3, —CH2—COOR, wherein R″ can be —H, —CH═CH2, —COOH, phenyl, CH3—CH═CH—, —COOR, and wherein m—0 to 8, preferably 2 to 4, more preferably m=3, and n=0 to 2, preferably 0 or 1. |
| 主权项 |
1. Sizing composition for glass fibres comprising:
(a) a silane based coupling agent mixture, (b) a film former, (c) Additives, Characterized in that, the silane based coupling agent mixture comprises (d) At least 15 wt. % of at least one dialkoxysilane, and (e) At least 20 wt. % of at least one unsaturated ester silane comprising an olefinic double bond activated by an ester function,wherein the wt. % are measured with respect to the total active solids weight of the silane based coupling agent mixture. |
