公开(公告)号：US3551364A

公开(公告)日：1970-12-29

申请号：US3551364D

申请日：1969-01-23

Applicant: USM CORP

Inventor： MCGARR JOHN J

IPC: C08J9/28 ,  D06N3/00 ,  C08C17/08 ,  C08D13/08 ,  C08G22/44

CPC classification number: C08J9/283 ,  D06N3/0052

公开(公告)号：US3917741A

公开(公告)日：1975-11-04

申请号：US35847673

申请日：1973-05-09

Applicant: USM CORP

Inventor： MCGARR JOHN J

IPC: C08G18/06 ,  C08G18/08 ,  C08G18/10 ,  C08J3/14 ,  C08L75/00

CPC classification number: C08G18/08 ,  C08G18/10 ,  Y10S528/902 ,  Y10S528/906

Abstract: Method for preparing polyurethane resin directly in finely divided form in which method a first reactant for forming the polyurethane is emulsified as fine droplets with the aid of special surfactants and controls in an inert organic liquid medium in which it and polyurethane resin are insoluble, a second reactant for combination with the first reactant is introduced into the liquid medium and interacted interfacially with the droplets of the first reactant to form fine particles of solid polyurethane resin protected from agglomeration by the surfactant, and the particles of polyurethane resin are separated from the liquid medium.

Abstract translation: 直接以细碎形式制备聚氨酯树脂的方法，其中用于形成聚氨酯的第一反应物的方法是用特殊的表面活性剂和对照物在其中与聚氨酯树脂不溶的惰性有机液体介质中作为细小液滴乳化，第二 与第一反应物组合的反应物被引入液体介质中并与第一反应物的液滴在界面上相互作用以形成被表面活性剂保护而不被聚集的固体聚氨酯树脂的细颗粒，并且聚氨酯树脂颗粒与液体介质分离 。

公开(公告)号：US3679783A

公开(公告)日：1972-07-25

申请号：US3679783D

申请日：1969-10-16

Applicant: USM CORP

Inventor： MCGARR JOHN J

IPC: B29C67/20 ,  C08J9/28 ,  B29D27/04

CPC classification number: C08J9/28 ,  B29C67/202 ,  B29C67/205 ,  C08J2375/04 ,  Y10S264/62

Abstract: A process for forming a microporous body having improved uniformity and permeability in which a normally solid or highly viscous polymeric reactive material is heated to bring it to a freely fluid state, a liquid having no or only very limited solvent or swelling action on the polymeric material is dispersed to form an emulsion with the polymeric material as the continuous phase, the polymeric material is reacted to tough, solid, resilient, film-forming condition, the emulsion is solidified and the liquid is removed leaving spaces constituting openings or pores in the solidified material. Where thin cross section bodies are desired, the emulsion is formed into a thin layer on a casting surface with a cover on the face of the emulsion opposite the casting surface, the cover remains in place during solidification of the emulsion, and is separated from the solidified emulsion before removal of the liquid.

Abstract translation: 一种用于形成具有改善的均匀性和渗透性的微孔体的方法，其中将正常固体或高粘度的聚合物反应性材料加热以使其达到自由流动状态，对聚合物材料没有或仅有非常有限的溶剂或溶胀作用的液体 被分散以形成具有聚合物材料作为连续相的乳液，聚合材料反应成韧性，固体，弹性，成膜条件，乳液固化并除去液体，留下构成固化的孔或孔的空隙 材料。 在需要薄的横截面体的情况下，乳液在铸造表面上形成薄层，乳液表面与浇铸表面相对的表面具有覆盖层，在乳化液固化期间，盖保持在适当位置，并与乳液分离 去除液体之前的固化乳液。