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Glass bonding primers containing aldimines

A technology of dialdimine and primer, applied in adhesive types, polyurea/polyurethane adhesives, adhesives, etc., which can solve problems such as loss of crosslinking density

Active Publication Date: 2022-04-15
DDP SPECIALTY ELECTRONICS MATERIALS US LLC
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the primer must have sufficient crosslink density to sustain high temperature and high humidity conditions
Under these conditions, conventional primers containing the above components tend to lose crosslink density and thus delaminate from the glass surface

Method used

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  • Glass bonding primers containing aldimines
  • Glass bonding primers containing aldimines
  • Glass bonding primers containing aldimines

Examples

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example

[0018] The invention is further illustrated by the following non-limiting examples.

[0019] Table 1 shows the various feedstock components and their sources used in the preparation of the Examples illustrating the invention.

[0020] Components used in the present invention in table 1

[0021]

[0022]

[0023] Table 2 summarizes various examples prepared to illustrate the invention. Examples 1 to 6 are samples according to the invention which contain aldimine, whereas examples 7 to 10 are comparative samples which do not contain aldimine.

[0024] Table 2 Contents of each example prepared.

[0025]

[0026] 1 Use Fomrez UL28 available from Momentive

[0027] 2 Using the KKAT 670 available from King's Industries

[0028] Additionally, two commercial black primers were used as comparative examples. The first primer, Example 11, is a commercial two-step glass bonding primer called BETASEAL TM 43520A, which is commercially available from The Dow Chemical Compan...

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PUM

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Abstract

A novel primer composition containing aldimine and / or epoxy resin, a method of making such a primer to be used in a glass bonding adhesive kit is disclosed.

Description

technical field [0001] The present invention relates to a new primer composition or "primer" which has unique properties in automotive related applications, particularly in glass bonding applications. Background technique [0002] A typical glass bonding adhesive kit contains a primer composition and a moisture cure urethane adhesive. Glass bonding primers typically contain organic solvents, organosilane intermediates, isocyanate prepolymers, film formers, carbon black, catalysts and stabilizers. The primer modifies the glass surface for good adhesion to the moisture-cured urethane adhesive. The isocyanate in the primer is subjected to moisture curing to produce a cross-linked thermoset network, which makes the primer robust enough to have sufficient durability under ambient conditions. However, the primer must have sufficient crosslink density to sustain high temperature and high humidity conditions. Under these conditions, conventional primers containing the above compo...

Claims

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Application Information

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IPC IPC(8): C08G18/50C08G18/58C08G18/72C08G18/73C08G18/76C08G18/77C08G18/79C08G18/80C08G18/28C08G18/32C08G18/38C08L67/00C09J175/02C08G18/30
CPCC08G18/503C08G18/584C08G18/725C08G18/73C08G18/7664C08G18/776C08G18/795C08G18/809C08G18/289C08G18/2895C08G18/307C08G18/3256C08G18/3844C09J175/02C08L67/00C09J7/50C09J175/04
Inventor N·马尔瓦德卡D·P·索菲娅J·M·维舒恩
Owner DDP SPECIALTY ELECTRONICS MATERIALS US LLC
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