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Thickening composition for water-soluble polymer compound and water-based coating composition containing the composition

A water-soluble polymer, water-based coating technology, used in coatings, antifouling/underwater coatings, biocide-containing paints, etc. Gloss, improved scrub resistance and sag resistance

Active Publication Date: 2021-07-23
LANGFANG NIPPON PAINT
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

It is generally considered that the dendritic molecular structure is very regular, with a molecular mass distribution M w / M n Molecular structure close to or equal to 1, but the synthesis steps are usually cumbersome

Method used

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  • Thickening composition for water-soluble polymer compound and water-based coating composition containing the composition
  • Thickening composition for water-soluble polymer compound and water-based coating composition containing the composition
  • Thickening composition for water-soluble polymer compound and water-based coating composition containing the composition

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0063] Prepare the aqueous solution of PAMAM, and formula is as shown in Table 2 below. Dissolve 20g of CYD-100A in 80g of deionized water and stir well to obtain a product named 100A.

Embodiment 2～9

[0065] Examples 2, 3, 5, 6, 8 and 9 prepared PAMAM with at least part of the terminal amino group cationized, and the formulations are shown in Table 2 below. Dissolve PAMAM (CYD-100A, CYD-110A, CYD-D014) in deionized water respectively according to the formula, then add hydrochloric acid (37%) dropwise according to the formula, and fully stir for 30 minutes. The PAMAMs prepared in Examples 2, 3, 5, 6, 8 and 9 with at least part of the cationized amino groups were named 100A-1HCl, 100A-2HCl, 110A-1HCl, 110A-2HCl, D014-1HCl, D014 respectively -2HCl.

Embodiment 4

[0066] Embodiment 4 and embodiment 7 prepare the aqueous solution of PAMAM, and formula is as shown in table 2 below. Dissolve 20g of CYD-110A and 20g of CYD-D014 in 80g of deionized water respectively, and stir well to get the products named 110A and D014 respectively.

[0067] Table 2. The prescription of embodiment 2~9

[0068]

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Abstract

The invention discloses a thickening composition for water-soluble polymer compounds, which comprises: dendritic or hyperbranched polyamines whose terminal amino groups are at least partly cationized; and clay. The thickening composition has high viscosity and good stability. Under the condition of a small amount of addition, it can replace conventional thickeners for thickening water-based coating compositions, and the thickening effect is obvious. The invention also discloses an aqueous coating composition comprising the thickening composition.

Description

technical field [0001] The present invention relates to the field of coating thickening. More specifically, it relates to a thickening composition for water-soluble polymer compounds and an aqueous coating composition containing the composition. Background technique [0002] Both dendrimers and hyperbranched polymers are highly branched polymers with nanoscale three-dimensional branched structures. It is generally considered that the dendritic molecular structure is very regular, with a molecular mass distribution M w / M n The molecular structure is close to or equal to 1, but the synthesis steps are usually cumbersome. Compared with dendritic polymers, hyperbranched polymers are less regular and have a wider molecular mass distribution, usually 1.2<M w / M n <2.5, because it has a similar structure to dendrimer, so the performance is also close. However, the synthesis method of hyperbranched polymers is simple, and generally can be synthesized by one-step polymer...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C09D7/44C09D5/16
CPCC09D5/1687C09D7/44
Inventor 唐桂艳唐晌李海荣汪少锋
Owner LANGFANG NIPPON PAINT
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