Aliphatic silylated polyurethane mixtures having reduced viscosites
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IPC분류정보
국가/구분
United States(US) Patent
등록
국제특허분류(IPC7판)
C08J-003/00
C08K-003/20
C08L-083/00
C08G-077/04
출원번호
US-0550122
(1995-10-27)
발명자
/ 주소
Potts Keith B. (Elgin IL) Chokshi Kanu R. (Crystal Lake IL)
출원인 / 주소
Morton International, Inc. (Chicago IL 02)
인용정보
피인용 횟수 :
25인용 특허 :
0
초록▼
A silylated polyurethane made by the reaction of an isocyanate-terminated polyurethane a mixture of a first and a second alkoxysilane, each of which has the general formula: (CH3)m(CH3O)3-mSi(CH2)3XH wherein X is NR, S, oxygen, or a ureido radical, and R is hydrogen, alkyl, aryl, aminoalkyl or trime
A silylated polyurethane made by the reaction of an isocyanate-terminated polyurethane a mixture of a first and a second alkoxysilane, each of which has the general formula: (CH3)m(CH3O)3-mSi(CH2)3XH wherein X is NR, S, oxygen, or a ureido radical, and R is hydrogen, alkyl, aryl, aminoalkyl or trimethoxysilylpropyl, has a lower viscosity than the average of the viscosities of two polyurethanes made from the same isocyanate-terminated polyurethane and either the first alkoxysilane or the second alkoxysilane. Likewise, a blend of those two silylated polyurethanes has a lower viscosity than the viscosity anticipated by the linear viscosity relationship typically observed for blends. Said linear relationship is based on a calculation of the weighted average viscosity of the blend from the viscosity of each component and the proportion of each.
대표청구항▼
A silylated polyurethane mixture having a viscosity less than the weighted average of the viscosities of the constituent silylated-polyurethanes, each constituent polyurethane having the general formula: [Figure] [Figure] wherein m and n are independently zero or one, X is NR, S, oxygen, or a ureido
A silylated polyurethane mixture having a viscosity less than the weighted average of the viscosities of the constituent silylated-polyurethanes, each constituent polyurethane having the general formula: [Figure] [Figure] wherein m and n are independently zero or one, X is NR, S, oxygen, or a ureido radical, R is hydrogen, alkyl, aryl, aminoalkyl or trimethoxysilylpropyl, Y is a urethane residue, and Z is a polyol residue, with the proviso that at least one of m, n, X, or R in a first silylated polyurethane is different than it is in a second silylated polyurethane.
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Katz, Lawrence E.; Petty, Herbert E.; Su, Shiu-Chin Huang; Waldman, Bruce A.; Barbera, Bruce C., Powder coating or adhesives employing silanes or silane treated fillers.
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