公开(公告)号：EP0005302A2

公开(公告)日：1979-11-14

申请号：EP79200211.5

申请日：1979-05-02

Applicant: STAUFFER CHEMICAL COMPANY

Inventor： Hahn, Alice Ulhee ,  Rider, Richard Harold ,  Scher, Herbert Benson ,  Hargrove, Garrard Lee

IPC: A01N25/12 ,  C05G1/00 ,  C08J5/00

CPC classification number: B01J2/006 ,  A01N25/26 ,  C05G3/0082 ,  Y10S428/905 ,  Y10S428/907 ,  Y10T428/2998

Abstract: Open-ended pores of a porous granule are filled with a liquid material which is at least partially immiscible with water, and sealed with a porous polyurea membrane which limits the release rate of the material into the surrounding medium. The membrane is formed by

(a) applying to the bare granule an organic solution comprising the liquid material and an organic polyisocyanate, followed by
(b) applying to the granule an aqueous solution comprising water and a catalytic amount of a catalyst selected from the group consisting of a basic organic tertiary amine and an alkyl tin carboxylate.

Abstract translation: 多孔颗粒的开放式孔填充有液体材料的所有可与水至少部分不混溶，并具有多孔聚脲膜，其限制了材料的释放速率到周围介质中密封。 该膜通过（a）施加到有机溶液的裸颗粒包括液体材料和多异氰酸酯在有机，其次是（b）将所述颗粒到wässrige溶液包含水和从所述组中选择的催化剂的催化量FORMED 由碱性有机叔胺和烷基羧酸锡的。

公开(公告)号：EP0005302B1

公开(公告)日：1981-11-25

申请号：EP79200211.5

申请日：1979-05-02

Applicant: STAUFFER CHEMICAL COMPANY

Inventor： Hahn, Alice Ulhee ,  Rider, Richard Harold ,  Scher, Herbert Benson ,  Hargrove, Garrard Lee

IPC: A01N25/12 ,  C05G1/00 ,  C08J5/00

CPC classification number: B01J2/006 ,  A01N25/26 ,  C05G3/0082 ,  Y10S428/905 ,  Y10S428/907 ,  Y10T428/2998

公开(公告)号：EP0005302A3

公开(公告)日：1979-11-28

申请号：EP79200211

申请日：1979-05-02

Applicant: STAUFFER CHEMICAL COMPANY

Inventor： Hahn, Alice Ulhee ,  Rider, Richard Harold ,  Scher, Herbert Benson ,  Hargrove, Garrard Lee

IPC: B01J02/00 ,  A01N17/08 ,  C05G01/00

CPC classification number: B01J2/006 ,  A01N25/26 ,  C05G3/0082 ,  Y10S428/905 ,  Y10S428/907 ,  Y10T428/2998

Abstract: Open-ended pores of a porous granule are filled with a liquid material which is at least partially immiscible with water, and sealed with a porous polyurea membrane which limits the release rate of the material into the surrounding medium. The membrane is formed by
(a) applying to the bare granule an organic solution comprising the liquid material and an organic polyisocyanate, followed by (b) applying to the granule an aqueous solution comprising water and a catalytic amount of a catalyst selected from the group consisting of a basic organic tertiary amine and an alkyl tin carboxylate.

Abstract translation: 多孔颗粒的开口孔填充有与水至少部分不混溶的液体材料，并用多孔聚脲膜密封，这限制了材料进入周围介质的释放速率。 通过（a）向裸颗粒施加包含液体材料和有机聚异氰酸酯的有机溶液，然后（b）向颗粒中施加包含水和催化量的催化剂的水溶液，形成膜 由碱性有机叔胺和烷基锡羧酸盐组成。