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Aqueous composite resin composition, coating agent containing the same, and multilayer body using the coating agent

A composite resin and composition technology, applied in the direction of synthetic resin layered products, coatings, adhesive types, etc., can solve problems such as deterioration of plastic substrates, and achieve excellent durability, weather resistance, and excellent rust resistance. Effect

Active Publication Date: 2010-09-01
DIC CORP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0018] However, when the above-mentioned coating composition for plastics is exposed to sunlight, wind and rain, etc. for a long time, it may cause partial dissolution or peeling of the coating film, and as a result, deterioration of the plastic substrate may be caused.

Method used

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  • Aqueous composite resin composition, coating agent containing the same, and multilayer body using the coating agent
  • Aqueous composite resin composition, coating agent containing the same, and multilayer body using the coating agent
  • Aqueous composite resin composition, coating agent containing the same, and multilayer body using the coating agent

Examples

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Effect test

Embodiment

[0178] Next, the present invention will be described more specifically by way of examples and comparative examples.

Synthetic example 1

[0179] Synthesis Example 1 [Preparation Example of Methyltrimethoxysilane Condensate (a3'-1)]

[0180] In a reaction vessel equipped with a stirrer, a thermometer, a dropping funnel, a condenser, and a nitrogen inlet, 1421 parts by mass of methyltrimethoxysilane (MTMS) was fed, and the temperature was raised to 60°C.

[0181] Next, a mixture of 0.17 parts by mass of "A-3" [isopropyl acid phosphate manufactured by Sakai Chemical Co., Ltd.] and 207 parts by mass of deionized water was dropped in the reaction vessel for 5 minutes, and then the ℃ temperature for 4 hours to carry out hydrolysis condensation reaction.

[0182] The condensate obtained by the hydrolysis-condensation reaction is subjected to a temperature of 40-60° C. and a reduced pressure of 300-10 mmHg (referring to the condition that the reduced pressure at the beginning of methanol distillation is 300 mmHg and the final reduced pressure is 10 mmHg. The following are the same.) Distillation, and methanol and water...

Synthetic example 2

[0184] Synthesis Example 2 [Preparation Example of Ethyltrimethoxysilane Condensate (a3'-2)]

[0185] In a reaction vessel equipped with a stirrer, a thermometer, a dropping funnel, a condenser, and a nitrogen inlet, 1296 parts by mass of ethyltrimethoxysilane (ETMS) was fed, and the temperature was raised to 60°C.

[0186] Next, a mixture of 0.14 parts by mass of "A-3" [isopropyl acid phosphate manufactured by Sakai Chemical Co., Ltd.] and 171 parts by mass of deionized water was dropped in the reaction vessel for 5 minutes, and then the ℃ temperature for 4 hours to carry out hydrolysis condensation reaction.

[0187] Distill the condensate obtained by the hydrolysis and condensation reaction at a temperature of 40 to 60°C and a reduced pressure of 300 to 10 mmHg, and remove the generated methanol and water, thereby obtaining ethyltrimethylmethanol with a number average molecular weight of 1100 1000 parts by mass of a liquid mixture (70 mass % of active ingredient) of the co...

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Abstract

Disclosed is an aqueous composite resin composition containing a composite resin (A) wherein a hydrophilic group-containing polyurethane (a1) is bonded with a vinyl polymer (a2) through a polysiloxane (a3), and an aqueous medium. The aqueous composite resin composition is characterized in that the mass ratio of the structure derived from the polysiloxane (a3) relative to the entire composite resin (A) is within the range of 15-55% by mass. A coating agent for metal bases and a coating agent for plastic bases each containing the aqueous composite resin composition are also disclosed.

Description

technical field [0001] The present invention relates to an aqueous composite resin composition that can be used in various applications including coating agents and adhesives. Background technique [0002] Coating agents are required not only to impart appearance to various substrates but also to be able to form a coating film having excellent durability capable of preventing deterioration of the substrate. In particular, in recent years, the industry has been demanding coating agents that can form coatings that do not cause dissolution or peeling of the coating, even when organic solvents, acid rain, etc., adhere to the surface of the coating. A coating film with durability and weather resistance at the level of gloss reduction, crack generation, etc. [0003] As a coating agent capable of forming a coating film having excellent durability and weather resistance as described above, for example, there are known water-based resins that combine a specific polysiloxane segment...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08G77/458B32B15/095B32B27/40C08F20/26C08G18/38C09D5/02C09D133/08C09D175/04C09D183/10
CPCC08L83/10C08G81/02C08G18/4854C09D175/04C09J175/04C09D5/08C08G18/44C08G18/755C08G18/0823C09D5/1693C09D5/1675C08G77/458C08G18/10C08G2270/00C08F220/18C08G18/289C08L33/00Y10T428/31663C08F220/1804C08G18/348
Inventor 松泽博松冈龙一永浜定白发润田中一义
Owner DIC CORP