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Compositions containing isocyanate functional prepolymers and quaternary ammonium modified nanoclays

A nanoclay, isocyanate technology, applied in the direction of polyurea/polyurethane adhesives, adhesive types, adhesives, etc., can solve problems such as negative effects of adhesive properties, shear sensitivity, etc.

Inactive Publication Date: 2018-10-23
DOW GLOBAL TECH LLC
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Polyester-based isocyanate-functional prepolymers can be shear sensitive, and processing of adhesives containing them can negatively affect the properties of the adhesive, and some of these adhesive systems may not be suitable for use with new designs use together

Method used

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  • Compositions containing isocyanate functional prepolymers and quaternary ammonium modified nanoclays

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Embodiment Construction

[0011] The explanations and illustrations presented herein are intended to acquaint others skilled in the art with the invention, its principles and its practical application. The following claims are hereby incorporated by reference into this written description.

[0012] One or more methods may use at least one or more than one of the listed components. Nominal values ​​for functionality mean theoretical functionality; this can be calculated from the stoichiometry of the ingredients used. Actual functionality will vary due to imperfections in starting materials, incomplete conversion of reactants and formation of by-products. Isocyanate content refers to the weight percent of isocyanate moieties based on the total weight of the prepolymer. The term isocyanate-reactive compound refers to any organic compound that nominally has at least two isocyanate-reactive moieties (including moieties containing active hydrogen), and may refer to moieties containing hydrogen atoms, accor...

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Abstract

Disclosed are compositions containing isocyanate functional prepolymers, quaternary ammonium modified nanoclays and thixotropic fillers; adhesives based on such compositions; and methods for bonding substrates together utilizing the compositions.

Description

technical field [0001] Disclosed are compositions comprising isocyanate functional prepolymers, quaternary ammonium modified nanoclays, and optionally thixotropic fillers; adhesives based on such compositions; and methods for bonding substrates utilizing said compositions way together. Background technique [0002] Compositions with isocyanate functional components are used in a variety of useful products such as adhesives, sealers, molded products and foams useful in construction, vehicle manufacturing, electronic assembly and device assembly, and toys. Adhesives have been widely used because they provide reasonable processing conditions and exhibit good adhesion to many substrates, such as bonding windows into structures or structural components. In an automobile assembly plant, windows are bonded together with a one-part adhesive composition containing an isocyanate-functional component and a curing catalyst that cures upon exposure to moisture. Dispensing equipment for...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08G18/79C08K3/34C08K3/36C08G18/12C08G18/30C08K9/04C09J175/08C08L75/08
CPCC08G18/792C08K3/346C08K3/36C08G18/12C08G18/307C08K9/04C09J175/08C08L75/08C08K2201/011
Inventor L·周S·艾利森A·R·科内赛尔
Owner DOW GLOBAL TECH LLC
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