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    • 3. 发明申请
    • Variable dispersion of wet use chopped strand glass fibers in a chopped title strand mat
    • 湿切割的股线玻璃纤维在切碎的标题丝网中的可变分散
    • US20090159228A1
    • 2009-06-25
    • US12004853
    • 2007-12-21
    • Annabeth LawScott W. SchweigerLeonard J. AdzimaPaul R. Krumlauf
    • Annabeth LawScott W. SchweigerLeonard J. AdzimaPaul R. Krumlauf
    • D21H19/20
    • D21H13/40C03C25/328C03C25/40D06M15/21D21H19/20
    • A size composition for reinforcement fibers used to form non-woven mats that contain variable amounts of individual filaments dispersed from chopped reinforcement fiber bundles is provided. The size composition contains a polyvinylamine film former, one or more silane coupling agents, and, optionally a lubricant. The size composition works in conjunction with the whitewater components in a wet-laid mat forming process to disperse individual filaments from the bundles of chopped fibers. The whitewater contains an anionic polyacrylamide viscosity modifier and/or a cationic or non-ionic amine dispersant (e.g., ethoxylated amine). The presence of a cationic or non-ionic amine in the whitewater disperses individual filaments from the chopped glass fiber bundles. The greater the amount of cationic or non-ionic amine present in the whitewater, the greater the amount of fiber dispersion. The absence of a cationic or non-ionic amine and the presence of an anionic polyacrylamide viscosity modifier maintain full bundle formation integrity.
    • 提供了用于形成包含从切碎的增强纤维束分散的可变量的单丝的非织造毡的增强纤维的尺寸组合物。 尺寸组合物包含聚乙烯胺成膜剂,一种或多种硅烷偶联剂,和任选的润滑剂。 尺寸组合物与湿法成网工艺中的白液组分一起工作,以从短切纤维束分散单丝。 白水含有阴离子聚丙烯酰胺粘度调节剂和/或阳离子或非离子胺分散剂(例如乙氧基化胺)。 在白水中阳离子或非离子胺的存在将从短切玻璃纤维束中分散单丝。 白水中存在的阳离子或非离子胺的量越多,纤维分散体的量越多。 不存在阳离子或非离子胺和阴离子聚丙烯酰胺粘度调节剂的存在保持完整的束形成完整性。
    • 6. 发明申请
    • Cationic fiberglass size
    • 阳离子玻璃纤维尺寸
    • US20090162609A1
    • 2009-06-25
    • US12004875
    • 2007-12-21
    • Jerry HC LeeLeonard J. AdzimaScott W. SchweigerLiang Chen
    • Jerry HC LeeLeonard J. AdzimaScott W. SchweigerLiang Chen
    • E04D3/06B32B27/02
    • C03C25/326C03C25/40C08G18/0814C08G18/12C08G18/4018C08G18/755C08J5/08E04D1/20E04D5/10Y10T428/24388Y10T428/2962C08G18/286C08G18/289C08G18/3275
    • A sizing composition for reinforcement fibers that includes a cationic modified polyurethane dispersion, one or more silane coupling agents, and at least one lubricant is provided. The cationic modified polyurethane dispersion includes a dual end-capped polyurethane selected from a silane-terminated polyurethane, a ketoxime-terminated polyurethane, or a hybrid silane/ketoxime-terminated polyurethane where one end of the polyurethane is terminated with a silane group and the opposing end is terminated with a ketoxime group. The size composition is applied to reinforcement fibers and formed into chopped strand, wet-laid mats that can be used for a variety of purposes, including roofing products. Chopped strand mats formed from fibers sized with the inventive sizing composition maintains or improves the dry tear strengths and wet strengths compared to chopped strand mats made from fibers sized with a commercial sizing composition that does not contain a modified cationic polyurethane dispersion (e.g., SPUD).
    • 提供了包含阳离子改性聚氨酯分散体,一种或多种硅烷偶联剂和至少一种润滑剂的增强纤维用施胶组合物。 阳离子改性聚氨酯分散体包括选自硅烷封端的聚氨酯,酮肟封端的聚氨酯或混合硅烷/酮肟封端的聚氨酯的双端封聚氨酯,其中聚氨酯的一端用硅烷基团终止, 末端用酮肟组终止。 尺寸组合物用于增强纤维并形成短切纤维,可用于各种目的的湿敷垫,包括屋顶产品。 由使用本发明的施胶组合物尺寸的纤维形成的切断的丝网垫与由不含改性阳离子聚氨酯分散体(例如SPUD)的商业施胶组合物尺寸的纤维制成的短切丝网垫相比,保持或改善干燥撕裂强度和湿强度, 。