-
1.发明授权Unsaturated polyester-modified flexible polymers for use in molding composition 失效用于模塑组合物的不饱和聚酯改性的柔性聚合物
公开(公告)号：US5428068A
公开(公告)日：1995-06-27
申请号：US1476
申请日：1993-01-07
CPC分类号： C08G81/00
摘要： This invention relates to a thermosetting unsaturated polyester or vinyl ester resin compositions modified with AB or ABA block copolymers. The A blocks are unsaturated polyester while the B blocks are flexible poller having a Tg of 0.degree. C. or lower. The blocks are generally separately prepared having a variety of terminal groups such as hydroxyl, carboxyl, amine, or isocyanate groups, but low molecular weight A blocks can be prepared in situ on the B blocks, The functionality of the blocks can be controlled to get AB or ABA diblocks and polyblocks, These modified unsaturated polyester or vinyl ester resin compositions have higher flexural strain to failure and are generally tougher than standard resins without modification. Control of the reaction conditions and the functionality of the blocks prior to coupling minimizes the formation of A(BA).sub.n where n is an integer above 1.
摘要翻译： 本发明涉及用AB或ABA嵌段共聚物改性的热固性不饱和聚酯或乙烯基酯树脂组合物。 A嵌段是不饱和聚酯，而B嵌段是Tg为0℃或更低的柔性涂布辊。 通常单独制备具有各种端基如羟基，羧基，胺或异氰酸酯基团的嵌段，但可以在B嵌段上原位制备低分子量的A嵌段。可以控制嵌段的官能团以得到 AB或ABA二嵌段和多嵌段，这些改性的不饱和聚酯或乙烯基酯树脂组合物具有较高的抗破坏应变，并且通常比未改性的标准树脂更坚韧。 在偶联之前控制反应条件和嵌段的官能度使得其中n是高于1的整数的A（BA）n的形成最小化。
-
公开(公告)号：US5491184A
公开(公告)日：1996-02-13
申请号：US329358
申请日：1994-10-26
CPC分类号： C08G81/00
摘要： ABA block copolymers having saturated polyester midblocks "B" and unsaturated polyester condensation end blocks A of molecular weight from about 100 to 500 or 600 are described which increase the flexural strain to failure of unsaturated polyester or vinyl ester resins. These ABA block copolymers are generally compatible with unsaturated polyester resins and increase flexural strain by a different mechanism than used by incompatible rubbery polymers. These ABA block copolymers are compatible with the unsaturated polyester compositions and do not phase separate.
-
3.发明授权Unsaturated polyester-modified flexible copolymers for use in sheet molding compositions 失效用于片状成型组合物的不饱和聚酯改性的柔性共聚物
公开(公告)号：US5385963A
公开(公告)日：1995-01-31
申请号：US1489
申请日：1993-01-07
CPC分类号： C08G81/00
摘要： ABA block copolymers having saturated polyester midblocks "B" and unsaturated polyester condensation end blocks A of molecular weight from about 100 to 500 or 600 are described which increase the flexural strain to failure of unsaturated polyester or vinyl ester resins. These ABA block copolymers are generally compatible with unsaturated polyester resins and increase flexural strain by a different mechanism than used by incompatible rubbery polymers. These ABA block copolymers are compatible with the unsaturated polyester compositions and do not phase separate.
摘要翻译： 描述了具有饱和聚酯中间嵌段“B”和分子量为约100至500或600的不饱和聚酯缩合端嵌段A的ABA嵌段共聚物，其增加了不饱和聚酯或乙烯基酯树脂的失效的弯曲应变。 这些ABA嵌段共聚物通常与不饱和聚酯树脂相容，并且通过与不相容的橡胶状聚合物使用的不同机理增加挠曲应变。 这些ABA嵌段共聚物与不饱和聚酯组合物相容，不相分离。
-
公开(公告)号：US5362819A
公开(公告)日：1994-11-08
申请号：US828080
申请日：1992-01-30
CPC分类号： C08G81/00 , Y10T428/31511 , Y10T428/31794
摘要： A block copolymer of generally an AB, ABA, or A(BA).sub.n structure, or mixtures thereof where the A block is an unsaturated polyester, the B block is a flexible polymer having a Tg of 0.degree. C. or lower, and n is 2 to 5. The various block components are generally first separately prepared as polymers with the flexible polymer generally having 1 or 2 functional end groups such as an amine group, a carboxyl group, or a hydroxyl group with the later being preferred. Alternatively, for low molecular weight unsaturated polyester blocks, the block can be made in situ. The preferred reaction route is to react a mono or dihydroxy terminated flexible polymer with a diisocyanate which subsequently can be readily reacted with the polyester. The block copolymers can be utilized as toughening agents. They furthermore can be utilized to coat a fiber structure such as individual fibers, a woven structure, or a nonwoven structure such as mats, rovings, bundles, and the like, with the coated fiber structures subsequently incorporated into a polymeric matrix such as polyester.
摘要翻译： 一般为AB，ABA或A（BA）n结构的嵌段共聚物或其混合物，其中A嵌段是不饱和聚酯，B嵌段是Tg为0℃或更低的柔性聚合物，n 通常首先单独制备各种嵌段组分作为聚合物，其中柔性聚合物通常具有1或2个官能端基，例如胺基，羧基或羟基，稍后优选。 或者，对于低分子量不饱和聚酯嵌段，可以原位制备嵌段。 优选的反应路线是使单或二羟基封端的柔性聚合物与二异氰酸酯反应，随后可以容易地与聚酯反应。 嵌段共聚物可用作增韧剂。 此外，它们还可以用于涂覆纤维结构，例如单独的纤维，编织结构或诸如垫，粗纱，束等的非织造结构，其中涂覆的纤维结构随后被并入聚合物基质如聚酯中。
-
5.发明授权Vinyl-terminated polyesters and polycarbonates for flexibilizing and improving the toughness of compositions from unsaturated polyesters and fiber reinforced plastics made from them 失效乙烯基封端的聚酯和聚碳酸酯用于增韧和改善由它们制成的不饱和聚酯和纤维增强塑料的组合物的韧性
公开(公告)号：US5342554A
公开(公告)日：1994-08-30
申请号：US1355
申请日：1993-01-07
摘要： Vinyl-terminated polyesters and vinyl-terminated aliphatic polycarbonates are described which improve the flexibility and elongation at failure of cured samples of unsaturated polyesters or vinyl ester resins both at room temperature and at high temperatures, and without significant loss of surface quality or other mechanical properties. Further, these polymers do not phase separate from uncured polyester resin/styrene solutions, do not significantly increase the initial viscosity of molding compositions in which they have been incorporated, and do not negate the effect of low shrinkage additives during cure.
摘要翻译： 描述了乙烯基封端的聚酯和乙烯基封端的脂族聚碳酸酯，其在室温和高温下改善不饱和聚酯或乙烯基酯树脂固化样品的柔性和伸长率，并且不会显着损失表面质量或其它机械性能 。 此外，这些聚合物不与未固化的聚酯树脂/苯乙烯溶液分相，不会显着增加其已经被引入的成型组合物的初始粘度，并且不能否定固化期间低收缩添加剂的作用。
-
公开(公告)号：US5389443A
公开(公告)日：1995-02-14
申请号：US1488
申请日：1993-01-07
CPC分类号： C08G81/00 , Y10T428/31511 , Y10T428/31794
摘要： Hydroxy-terminated telechelic rubber polymers and block copolymers of flexible polymers with unsaturated polyester resins improve the elongation and flexural elongation of in-mold coating compositions for fiber reinforced plastics (FRP). An FRP in-mold coating composition based upon vinyl ester resin, ethylenically unsaturated monomers, and at least one of telechelic hydroxy terminated flexible polymers and the block copolymers of functionally terminated flexible polymers with unsaturated polyester polymers are described.
摘要翻译： 羟基封端的遥爪橡胶聚合物和柔性聚合物与不饱和聚酯树脂的嵌段共聚物改善了纤维增强塑料（FRP）的模内涂料组合物的伸长率和弯曲伸长率。 描述了基于乙烯基酯树脂，烯键式不饱和单体和至少一种遥爪羟基封端的柔性聚合物的FRP模内涂料组合物和具有不饱和聚酯聚合物的官能封端的柔性聚合物的嵌段共聚物。
-
公开(公告)号：US5523337A
公开(公告)日：1996-06-04
申请号：US330516
申请日：1994-10-27
CPC分类号： C08G81/00 , Y10T428/31511 , Y10T428/31794
摘要： Hydroxy-terminated telechelic rubber polymers and block copolymers of flexible polymers with unsaturated polyester resins improve the elongation and flexural elongation of in-mold coating compositions for fiber reinforced plastics (FRP). An FRP in-mold coating composition based upon vinyl ester resin, ethylenically unsaturated monomers, and at least one of telechelic hydroxy terminated flexible polymers and the block copolymers of functionally terminated flexible polymers with unsaturated polyester polymers are described.
-
公开(公告)号：US08338516B1
公开(公告)日：2012-12-25
申请号：US12697477
申请日：2010-02-01
申请人： Rebecca A. Parr , David P. Allen , Daniel P. Ratka , Earl G. Melby , Frank D. Miller , Thomas W. Bansback
发明人： Rebecca A. Parr , David P. Allen , Daniel P. Ratka , Earl G. Melby , Frank D. Miller , Thomas W. Bansback
IPC分类号： C09D11/10
CPC分类号： C09J11/08 , C08G77/16 , C09J7/385 , C09J2483/00 , C09J2493/00 , Y10T428/14 , Y10T428/1495 , Y10T428/31663
摘要： A pressure sensitive adhesive composition including silicone-modified tackifier. The silicone-modified tackifier is produced by reacting reactive silicone with tackifier. Laminates made with the pressure sensitive adhesive have improved guillotinability.
摘要翻译： 一种压敏粘合剂组合物，其包含硅氧烷改性的增粘剂。 有机硅改性增粘剂是通过使反应性硅氧烷与增粘剂反应制得的。 使用压敏粘合剂制成的层压板具有改善的脱胶性。
-
公开(公告)号：US4868231A
公开(公告)日：1989-09-19
申请号：US199725
申请日：1988-05-27
申请人： Gerd M. Lenke , Hubert J. Fabris , Earl G. Melby
发明人： Gerd M. Lenke , Hubert J. Fabris , Earl G. Melby
摘要： Sheet molding compounds are thickened (or maturated) via "in situ" formation of polyureas made from aromatic primary diamines with reduced basicity and diisocyanates. The molding compounds, which can optionally contain mineral fillers such as chopped glass fiber, are generally based upon unsaturated polyester resins having a high percentage of hydroxyl end groups, polymerizable vinyl compounds such as styrene, and the like. The thickened compositions are tack-free and compression moldable after less than one day, typically after less than several hours, into permanently shaped, strong rigid articles, such as automotive body parts. A viscosity plateau is reached and maintained by the maturated compounds of the present invention for extended periods of time, e.g., several weeks.
-
公开(公告)号：US4676995A
公开(公告)日：1987-06-30
申请号：US832281
申请日：1986-02-24
IPC分类号： B05D5/00 , B32B25/08 , B60J10/00 , C08F8/20 , C08F20/52 , C08F20/56 , C08G69/04 , C08G69/48 , C08G73/14 , C08G85/00 , C08J5/16 , C08J7/04 , C08L77/00 , C09D177/00 , C09K3/10 , B05D3/06
CPC分类号： C08J7/047 , B60J10/15 , B60J10/17 , C08G69/48 , C08J2321/00 , C08J2477/00 , Y10T428/24198
摘要： Pelletized thermoplastic polymers or resins containing (--CONH--) groups such as the nylons can readily be brominated or chlorinated in organic solvents to convert the (--NH--) units to (--NBr--) or (--NCl--) units and to form solutions of the N-brominated or N-chlorinated thermoplastic polymers or resins. These N-brominated or N-chlorinated thermoplastic polymer solutions can be coated on a cellular or solid rubbery hydrocarbon polymer substrate, such as an EPDM rubber in the form of a weatherstrip or glass run channel, dried and irradiated with ultraviolet light or heated at a temperature and for a period of time sufficient to reform the amide (--CONH--) groups and to provide the rubbery substrate with an adherent and abrasion resistant coating which also exhibits reduced ice adhesion and coefficient of friction.
-
-
-
-
-
-
-
-
-
搜索结果
30 条记录 (耗时 0.027 秒)
