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Contact adhesives

A composition and compound technology, applied in the direction of adhesive types, ester copolymer adhesives, non-polymer organic compound adhesives, etc., can solve problems such as inability to achieve operational strength

Active Publication Date: 2021-04-30
昕特玛德国有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Inability to achieve sufficient operating strength
[0013] The prior art does not provide the ability to be free of various additives (such as coagulants) and free of halogenated polymers (such as chloroprene polymers) and in rapid bond strength development, high initial tack, excellent creep and heat resistance Water-based adhesives that still achieve excellent performance in terms of durability, preferably one-pack / single-pack adhesives

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0158] Embodiment 1 (Ex-1):

[0159] A mixture of 201 parts deionized water and 7.71 parts acrylate seeds was stirred and heated in a 2 L glass reactor equipped with a reflux condenser, mechanical stirrer, temperature probe and metering pump. When the temperature of the mixture reached 77° C., an initiator solution of 2.3 parts ammonia (25 wt. % ammonia in water) and 1.73 parts sodium persulfate in 15.53 parts deionized water was added to the reactor in one portion. After five minutes of mixing, an initiator solution containing 1.73 parts ammonium persulfate in 32.78 parts deionized water was mixed with 1028.1 parts BA, 104.7 parts MMA, 11.5 parts HEMA, 57.5 parts DAAM, 10.35 parts ammonium oleate over a period of 270 minutes. , a pre-emulsion of 0.57 parts potassium phosphate and 383.5 parts deionized water was fed into the reactor. During the first 30 minutes of the feed, the temperature was continuously increased to 80°C. 60 minutes, 180 minutes, 245 minutes and 345 minut...

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Abstract

The present invention relates to a polymer latex composition, a method to prepare polymer latex compositions and an article comprising said polymer latex compositions. In particular but not exclusively, the invention relates also to a one-part aqueous contact adhesive comprising said polymer latex compositions. Furthermore, the present invention refers to a method to coagulate said polymer latex compositions.

Description

[0001] field of invention [0002] The present invention relates to polymer latex compositions, methods of making polymer latex compositions, and articles comprising the polymer latex compositions. In particular, but not exclusively, the present invention also relates to a can of aqueous press-fit adhesive comprising said polymer latex composition. Furthermore, the present invention relates to a method of coagulating said polymer latex composition. [0003] Background of the invention [0004] Over the past decade, environmental considerations have necessitated the re-evaluation of many existing products. Press-fit adhesives based on elastomeric polymers, which have been on the market for decades, fall into this category. [0005] As used herein, the term "press-fit adhesive" refers to an adhesive that is typically applied to one or more surfaces, typically two surfaces that are to be adhered together. The adhesives are allowed to dry for a period of time to form a clear adh...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C09J133/12C09J133/08C08F8/32
CPCC09J133/12C09J133/08C08F8/32C09D133/10C09D133/066C08F220/1804C08F8/30C08F220/14C08F220/20C08F220/58C09J133/06C09J133/066C08L33/08C08J3/02C08F2/24C09J4/00C09J7/10B32B7/12B32B9/025B32B2437/02B32B2479/00C08F2438/02
Inventor P·米勒O·科普克D·安特斯
Owner 昕特玛德国有限公司