公开(公告)号：US20180334596A1

公开(公告)日：2018-11-22

申请号：US15757877

申请日：2016-09-06

Applicant: Dow Global Technologies LLC

Inventor： Andreas Lutz ,  Daniel Schneider ,  Jeannine Flueckiger

IPC: C09J163/04 ,  C09J163/00 ,  C08G18/10 ,  C08G18/62 ,  C08G18/24 ,  C08G18/75 ,  C08G18/32 ,  C08G59/40 ,  C08G65/333

CPC classification number: C09J163/04 ,  A61B5/04001 ,  A61B5/04888 ,  A61B5/0492 ,  A61B5/6877 ,  A61B5/6882 ,  A61B2562/0209 ,  A61B2562/125 ,  A61N1/0551 ,  A61N1/0558 ,  C01B32/182 ,  C08G18/10 ,  C08G18/12 ,  C08G18/24 ,  C08G18/3215 ,  C08G18/4854 ,  C08G18/6204 ,  C08G18/675 ,  C08G18/698 ,  C08G18/73 ,  C08G18/755 ,  C08G18/8067 ,  C08G59/4021 ,  C08G59/686 ,  C08G65/33348 ,  C08L75/08 ,  C09J163/00 ,  C08G18/2825 ,  C08G18/282

Abstract: Epoxy adhesives include a latent curing agent, a reactive toughener having capped isocyanate groups, and certain urea compounds. The toughener is made by chain extending and capping a mixture of isocyanate-terminated prepolymers. The prepolymers include an isocyanate-terminated polyether and an isocyanate-terminated diene polymer. The adhesives have excellent wash-off resistance and excellent ability to adhere to oily substrates.

公开(公告)号：US11332609B2

公开(公告)日：2022-05-17

申请号：US16612166

申请日：2018-03-22

Applicant: Dow Global Technologies LLC

Inventor： Adam K. Schmitt ,  David H. Bank ,  Bharati Balijepalli ,  Daniel Schneider

IPC: C08L63/04 ,  C08J5/04 ,  C08L63/00 ,  B32B5/26 ,  C08G59/26 ,  C08G59/32 ,  C08G59/38 ,  C08G59/40 ,  C08G59/68 ,  C08J5/24

Abstract: A resin composition is comprised of an epoxy resin comprised of a solid epoxy resin and a liquid polyurethane toughener that is dissolved in the epoxy resin and, upon curing of the liquid epoxy resin, the liquid polyurethane toughener phase separates into particles having a particle size of 50 nm to 2 micrometers, an epoxy hardener; and an epoxy soluble latent catalyst. The resin composition provides a more homogeneous infusion of the resin into a fibrous material for forming a prepreg and ultimately an epoxy fiber reinforced composition with improved toughness without sacrificing speed of impregnation or uniformity of the epoxy matrix within the composite.

公开(公告)号：US20210163732A1

公开(公告)日：2021-06-03

申请号：US16612166

申请日：2018-03-22

Applicant: Dow Global Technologies LLC

Inventor： Adam K. Schmitt ,  David H. Bank ,  Bharati Balijepalli ,  Daniel Schneider

IPC: C08L63/00 ,  C08J5/04

Abstract: A resin composition is comprised of an epoxy resin comprised of a solid epoxy resin and a liquid polyurethane toughener that is dissolved in the epoxy resin and, upon curing of the liquid epoxy resin, the liquid polyurethane toughener phase separates into particles having a particle size of 50 nm to 2 micrometers, an epoxy hardener; and an epoxy soluble latent catalyst. The resin composition provides a more homogeneous infusion of the resin into a fibrous material for forming a prepreg and ultimately an epoxy fiber reinforced composition with improved toughness without sacrificing speed of impregnation or uniformity of the epoxy matrix within the composite.

公开(公告)号：US20190002686A1

公开(公告)日：2019-01-03

申请号：US15928437

申请日：2018-03-22

Applicant: Dow Global Technologies LLC

Inventor： Adam K Schmitt ,  David H. Bank ,  Bharati Balijepalli ,  Daniel Schneider

IPC: C08L63/04 ,  C08G59/40 ,  C08G59/68 ,  C08G59/26 ,  C08G59/38 ,  C08G59/32 ,  C08J5/04 ,  C08J5/24 ,  B32B5/26

Abstract: A resin composition is comprised of an epoxy resin comprised of a solid epoxy resin and a liquid polyurethane toughener that is dissolved in the epoxy resin and, upon curing of the liquid epoxy resin, the liquid polyurethane toughener phase separates into particles having a particle size of 50 nm to 2 micrometers, an epoxy hardener; and an epoxy soluble latent catalyst. The resin composition provides a more homogeneous infusion of the resin into a fibrous material for forming a prepreg and ultimately an epoxy fiber reinforced composition with improved toughness without sacrificing speed of impregnation or uniformity of the epoxy matrix within the composite.

公开(公告)号：US10155891B2

公开(公告)日：2018-12-18

申请号：US15314148

申请日：2015-07-14

Applicant: Dow Global Technologies LLC

Inventor： Andreas Lutz ,  Daniel Schneider

IPC: B29C65/48 ,  B29C65/54 ,  C08G18/10 ,  C08G18/12 ,  C08G18/30 ,  C08G18/48 ,  C08G18/66 ,  C08G18/73 ,  C09J11/04 ,  C09J175/04 ,  C09J175/08

Abstract: A one-component structural adhesive comprising an isocyanate-terminated prepolymer having polymerized residues of: (a) 40 to 95 wt % of a polytetramethylene ether glycol; and (b) 5 to 60 wt % of an aliphatic diisocyanate.

公开(公告)号：US20160369038A1

公开(公告)日：2016-12-22

申请号：US14898916

申请日：2014-07-24

Applicant: DOW GLOBAL TECHNOLOGIES LLC

Inventor： Andreas A. Lutz ,  Daniel Schneider ,  Stefan Schmatloch ,  Ilona Caderas

IPC: C08G18/67 ,  C08G18/22 ,  C08G18/32 ,  C08G18/79 ,  C09J175/08 ,  C08G18/50

CPC classification number: C08G18/675 ,  C08G18/0885 ,  C08G18/227 ,  C08G18/3215 ,  C08G18/3228 ,  C08G18/5024 ,  C08G18/798 ,  C09J175/08

Abstract: A new polyurethane (PU) adhesive composition having unique properties in automotive related applications such as composite bonding.

Abstract translation: 一种新的聚氨酯（PU）粘合剂组合物，其在汽车相关应用中具有独特的性能，例如复合粘合。

公开(公告)号：US20140275423A1

公开(公告)日：2014-09-18

申请号：US14263134

申请日：2014-04-28

Applicant: Dow Global Technologies LLC

Inventor： Andreas Lutz ,  Daniel Schneider

IPC: C08F283/00 ,  C09J163/00

CPC classification number: C08F283/006 ,  C08G18/12 ,  C08G18/2815 ,  C08G18/4854 ,  C08G18/6715 ,  C08G18/672 ,  C08G18/831 ,  C08L63/00 ,  C08L75/16 ,  C08L2666/20 ,  C09J163/00 ,  C09J163/04 ,  C09J175/16 ,  C08G18/6677

Abstract: Structural adhesives are prepared from an elastomeric toughener that contains urethane and/or urea groups, and have some terminal isocyanate groups that are capped with a phenol and other terminal isocyanate groups that are capped with a hydroxy-functional acrylate or a hydroxy-functional methacrylate. In certain embodiments, the presence of both types of capping on the toughener leads to higher impact peel strengths and a greater level of cohesive failure, than when the toughener is capped with a phenol an hydroxy-functional acrylate or hydroxy-functional methacrylate alone.

Abstract translation: 结构粘合剂由含有氨基甲酸酯和/或脲基团的弹性体增韧剂制备，并且具有一些末端异氰酸酯基团，其被带有羟基官能丙烯酸酯或羟基官能的甲基丙烯酸酯封端的苯酚和其它末端异氰酸酯基团封端。 在某些实施方案中，与增韧剂用酚羟基官能的丙烯酸酯或羟基官能的甲基丙烯酸酯单独加封时，在增韧剂上存在两种类型的覆盖物导致较高的冲击剥离强度和更大程度的内聚破坏。

公开(公告)号：US20180251633A1

公开(公告)日：2018-09-06

申请号：US15756347

申请日：2016-09-06

Applicant: Dow Global Technologies LLC

Inventor： Andreas Lutz ,  Daniel Schneider ,  Sergio Grunder ,  Bindu Krishnan

IPC: C08L75/04 ,  C08G18/12 ,  C08G18/32 ,  C08G18/48 ,  C08G18/69 ,  C08G18/80 ,  C09J163/00

CPC classification number: C08L75/04 ,  C08G18/12 ,  C08G18/3215 ,  C08G18/4854 ,  C08G18/698 ,  C08G18/8064 ,  C08G18/8067 ,  C08G18/8077 ,  C08G18/808 ,  C09J163/00 ,  C08G18/675

Abstract: The invention is directed to a toughener for epoxy adhesives, the toughener comprising both soft and rubber units, and may be described as a capped soft-rubber PU toughener. The invention includes the tougheners and methods of making them, as well as adhesives comprising the inventive tougheners, methods of using the tougheners and adhesives comprising them, and cured inventive adhesives and products comprising them.

公开(公告)号：US08858752B2

公开(公告)日：2014-10-14

申请号：US14165643

申请日：2014-01-28

Applicant: Dow Global Technologies LLC

Inventor： Andreas Lutz ,  Daniel Schneider

IPC: C09J163/02 ,  C09J163/00 ,  C09J175/00 ,  C08G59/24 ,  C08G71/00 ,  C08G18/48 ,  C08G18/73 ,  B29C65/48 ,  C08G18/12 ,  B32B37/12 ,  C08G18/66 ,  B32B27/38 ,  B32B27/40 ,  C08L75/08 ,  C08L75/04

CPC classification number: C09J163/00 ,  B29C65/4835 ,  B32B37/12 ,  C08G18/12 ,  C08G18/4854 ,  C08G18/6677 ,  C08G18/73 ,  C08L75/04 ,  C08L75/08 ,  C08L2666/20 ,  C08G18/286

Abstract: Structural adhesives are prepared from an elastomeric toughener that contains urethane and/or urea groups, and have terminal isocyanate groups that are capped with ketoxime compound. The adhesives have very good storage stability and cure to form cured adhesives that have good lap shear and impact peel strengths, even at −40° C.

Abstract translation: 结构粘合剂由含有氨基甲酸酯和/或脲基团的弹性体增韧剂制备，并具有用酮肟化合物封端的末端异氰酸酯基团。 粘合剂具有非常好的储存稳定性和固化性，以形成即使在-40℃下具有良好搭接剪切力和抗冲击剥离强度的固化粘合剂。

公开(公告)号：US20170204300A1

公开(公告)日：2017-07-20

申请号：US15324360

申请日：2015-07-29

Applicant: Dow Global Technologies LLC

Inventor： Sergio Grunder ,  Daniel Schneider ,  Stefan Schmatloch ,  Andreas Lutz

IPC: C09J11/06 ,  C09J11/08 ,  C09J175/04

CPC classification number: C09J11/06 ,  C08J3/241 ,  C08J2375/04 ,  C08K5/17 ,  C08K9/10 ,  C09J11/08 ,  C09J175/04 ,  C08G18/10 ,  C08G18/3253 ,  C08G18/3228

Abstract: A new polyurethane (PU) adhesive composition with encapsulated hardeners having unique properties in automotive related applications.