公开(公告)号：DE68907439T2

公开(公告)日：1993-11-11

申请号：DE68907439

申请日：1989-01-31

Applicant: PCR GROUP INC

Inventor： WILSON MICHAEL EARL

IPC: B27K3/34 ,  B27K5/00 ,  C04B41/49 ,  C04B41/64 ,  C04B41/84 ,  C09K3/18

Abstract: There are provided aqueous emulsions useful for rendering porous substrates water repellent comprising (a) a hydrolyzable silane having a determinable pH-stable range, (b) an emulsifying agent having an HLB value of from 2 to 20, an effective amount of (c) a buffering compound to maintain the composition within the pH-stable range; and (d) water. Such buffered compositions are stable on long term storage and maintain high effective levels of active silane content even when they include biocides which may accelerate the hydrolysis of aqueous silane-containing compositions.

公开(公告)号：AT91275T

公开(公告)日：1993-07-15

申请号：AT89200199

申请日：1989-01-31

Applicant: PCR GROUP INC

Inventor： WILSON MICHAEL EARL

IPC: B27K3/34 ,  B27K5/00 ,  C04B41/49 ,  C04B41/64 ,  C04B41/84 ,  C09K3/18

Abstract: There are provided aqueous emulsions useful for rendering porous substrates water repellent comprising (a) a hydrolyzable silane having a determinable pH-stable range, (b) an emulsifying agent having an HLB value of from 2 to 20, an effective amount of (c) a buffering compound to maintain the composition within the pH-stable range; and (d) water. Such buffered compositions are stable on long term storage and maintain high effective levels of active silane content even when they include biocides which may accelerate the hydrolysis of aqueous silane-containing compositions.

公开(公告)号：DE68907439D1

公开(公告)日：1993-08-12

申请号：DE68907439

申请日：1989-01-31

Applicant: PCR GROUP INC

Inventor： WILSON MICHAEL EARL

IPC: B27K3/34 ,  B27K5/00 ,  C04B41/49 ,  C04B41/64 ,  C04B41/84 ,  C09K3/18

Abstract: There are provided aqueous emulsions useful for rendering porous substrates water repellent comprising (a) a hydrolyzable silane having a determinable pH-stable range, (b) an emulsifying agent having an HLB value of from 2 to 20, an effective amount of (c) a buffering compound to maintain the composition within the pH-stable range; and (d) water. Such buffered compositions are stable on long term storage and maintain high effective levels of active silane content even when they include biocides which may accelerate the hydrolysis of aqueous silane-containing compositions.

公开(公告)号：CA2001416C

公开(公告)日：1996-05-14

申请号：CA2001416

申请日：1989-10-25

Applicant: PCR GROUP INC

Inventor： JOSLYN WALLACE GEORGE ,  ULRICH ALFRED DANIEL III ,  WILSON MICHAEL EARL

IPC: C08F255/00 ,  C08K5/14 ,  C08K5/544 ,  C08K5/5455 ,  C08K13/02 ,  C08L23/00 ,  C08G77/20 ,  C08L23/02 ,  C08K9/06

Abstract: There are provided reinforcing additives, e.g., for polyolefins, comprising (a) a hydrolyzable silane having an ethylenically unsaturated amide substituent and (b) a free radical generator. Also provided is a single step method of using such additives with hydroxyl-containing reinforcements, such as mica to improve processability and physical and thermal resistance properties of reinforced resin compositions.