Copolymer of epoxy compounds and amino silanes

a technology of epoxy compounds and amino silanes, applied in the field of copolymers, can solve problems such as limited durability

Inactive Publication Date: 2009-05-07
MOMENTIVE PERFORMANCE MATERIALS INC
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Unfortunately these materials are liquids and show limited durability when applied to a surface.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

example a

[0116]An epoxy encapped polyether (148.28 g) with the average structure of CH2(O)CHCH2O(CH2CH2O)22CH2CH(O)CH2, aminopropyltriisopropoxysilane (51.72 g) and isopropanol (60.00 g) were combined in a 500 mL round bottom flask. The solution was heat to reflux and stirred with a magnetic stirrer. The reaction was allowed to remain at reflux until all the epoxy groups were consumed as determined by titration. The resulting material exhibited a dark straw color. The material was transferred to a rotary evaporator and stripped at 70° C. and 4 torr for 2 hrs to remove the isopropanol.

example b

[0117]Aminopropyltriisopropoxy silane (51.72 g), an epoxy encapped polyether with the average structure CH2(O)CHCH2(OCH2CH2)7.3OCH2CH(O)CH2 (148.28 g) and isopropanol (60.00 g) was combined in a 500 mL flask. The material was brought to reflux and stirred with an overhead stirrer. The refluxing continued for 24 hr until all epoxy groups were consumed as determined by titration. The material was transferred to a rotary evaporator and stripped at 70° C. and 4 torr for 2 hrs to remove the isopropanol.

example c

[0118]Aminopropyltriisopropoxy silane (40.3 g), an epoxy encapped polysiloxane with the average structure CH2(O)CHCH2OCH2CH2CH2Si(CH3)2O[Si(CH3)2O]50Si(CH3)2CH2CH2CH2OCH(O)CH2 (206.12 g) and an epoxy encapped polyether with the average structure CH2(O)CHCH2O(CH2(CH3)CH2O)7CH2CH(O)CH2 (18.67 g) and isopropanol (88.48 g) was combined in a 500 mL flask. The material was brought to reflux and stirred with an overhead stirrer. The refluxing continued for 15.5 hr until all epoxy groups were consumed as determined by titration. The material was transferred to a rotary evaporator and stripped at 70° C. and 4 torr for 2 hrs to remove the isopropanol.

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Abstract

The present invention provides for a composition comprising the reaction product ofa. an oxirane or oxetane compound comprising at least two oxirane or oxetane groups; andb. an amino silane having the formula:N(H)(R1)R2Si(OR3)3-a-b-c(OR4)a(R5Si(OR6)d(R7)e)bR8c with R1 is chosen from the group consisting of H or a monovalent hydrocarbon radical containing one to 20 carbon atoms;R2 and R5 are independently selected from a group consisting of oxygen or a divalent linear or branched hydrocarbon radical consisting of 1-60 carbons;R4 is a hydrocarbon radical that contains 3 to 200 carbon atoms;R3, R6, R7, and R8 and are each independently selected from the group of monovalent linear or branched hydrocarbon radicals having from 1 to 200 carbon atoms;the subscript b is zero or a positive number and has a value ranging from 0 to 3;the subscripts a, and c are zero or positive and have a value ranging from 0 to 3 subject to the limitation that (a+b+c)≦3;the subscripts d and e are zero or positive and have a value ranging from 0 to 3 subject to the limitation that (d+e)≦3.

Description

CROSS-REFERENCE TO RELATED APPLICATIONS [0001]This application claims priority to US provisional patent application Ser. No. 60 / 984,753 filed Nov. 2, 2007.FIELD OF THE INVENTION[0002]The present invention relates to novel copolymers formed as the reaction product of epoxy compounds and amino silanes.BACKGROUND OF THE INVENTION[0003]U.S. Pat. No. 4,062,999 A describes a process for treating textile fibers with a mixture of an amino functional silane and an epoxy functional silicone. The unreacted mixture is applied to the fiber then heat treated in an oven.[0004]U.S. Pat. No. 4,359,545A describes the process of reacting an amino functional silicone and an epoxy functional silicone onto a textile surface. The blend is applied to a textile then heat-treated in an oven.[0005]U.S. Pat. No. 5,384,340 describes the use of a moisture and or photo curable coatings system. The process involves first reacting an epoxy or methacryl functional silane with an excess of an amino functional silicon...

Claims

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Application Information

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Patent Type & Authority Applications(United States)
IPC IPC(8): C08L83/04C08G77/04
CPCC07F7/1836D06M15/65C08F8/32C08F8/42C08G59/1477C08G59/4085C08G77/12C08G77/14C08G77/20C08G77/26C08G77/388C08G77/46C08G77/50C08G77/54C08G77/80C08L63/00C08L83/04C09D183/08D06M15/6436C08C19/40C07F7/1804Y10T428/249921Y10T442/20
Inventor FALK, BENJAMIN
Owner MOMENTIVE PERFORMANCE MATERIALS INC
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