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Ultraviolet light absorber resistance polyurethane composition and coating material using the same

A UV-resistant and absorbent technology, used in radiation-absorbing coatings, polyurea/polyurethane coatings, coatings, etc., can solve the problems of insufficient resistance, deterioration of the surface appearance of the molded body, and inability to meet the UV absorbent resistance, etc. Excellent durability, excellent adhesion, and excellent compatibility

Active Publication Date: 2016-09-28
TOSOH CORP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] However, the curable compositions described in these patent documents cannot satisfy the resistance to ultraviolet absorbers contained in sunscreens.
[0005] That is, conventional polyurethane-based resin coating materials have seen improvement in durability against oil components such as oleic acid and tallow, but are often not resistant to ultraviolet absorbers contained in cosmetics and sunscreens (creams, lotions, etc.). Sufficient, the appearance of the surface of the molded product may deteriorate due to the adhesion of the ultraviolet absorber

Method used

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  • Ultraviolet light absorber resistance polyurethane composition and coating material using the same
  • Ultraviolet light absorber resistance polyurethane composition and coating material using the same
  • Ultraviolet light absorber resistance polyurethane composition and coating material using the same

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Embodiment

[0136] Hereinafter, examples of the present invention will be described, but the present invention should not be limitedly interpreted to these examples.

[0137]

[0138]

[0139] In a four-neck flask with a capacity of 1 liter equipped with a stirrer, a thermometer, a heating device, and a distillation tower, IPDI isocyanurate (manufactured by Evonik Co., Ltd., trade name: VESTANAT T1890 / 100, NCO content) was charged as polyisocyanate (A). 17.3% by mass or less, referred to as "IPDI nurate") 400 g and methyl ethyl ketone (hereinafter referred to as "MEK") 500 g, nitrogen bubbling was performed while uniformly stirring them at 25° C. to prepare a polyisocyanate solution . 100 g of 2-aminoethanol (manufactured by Kishida Chemical Co., Ltd.) as the amino alcohol (B) was slowly added to the polyisocyanate solution, and the urea reaction was carried out while keeping the temperature below 60° C. under a nitrogen stream. This gave a hydroxyl-terminated prepolymer solution PP-...

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Abstract

The invention relates to an ultraviolet light absorber resistance polyurethane composition and a coating material using the same. The polyurethane composition comprising good durablity for a ultraviolet light absorber contained by cosmetics and sun-screening agents, the coating material and a paint film are provided. The ultraviolet light absorber resistance polyurethane composition can be solved by a hydroxyl-terminated prepolymer comprising a isocyanurate ring structure, amino alcohol and a curing agent.

Description

technical field [0001] It relates to an ultraviolet absorber-resistant polyurethane composition useful for electronic device components such as mobile phones and communication tablets, home appliance components, daily necessities, and automotive components, especially plastic components, molded articles and coating materials using the composition. Background technique [0002] Polyurethane resins are obtained by reacting polyisocyanate components and polyol components, and polyurethane resins having various performances can be provided by the types and combinations of the respective components. In particular, moldings and coating materials using such resins are often used for electronic device components, furniture / home appliances, daily miscellaneous goods, and automotive components. However, when such molded articles and coating materials are used in contact with the human body for a long time, sebum components contained in sweat, oleic acid contained in skin protection cr...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08G18/28C08G18/32C08G18/79C09D175/04C09D5/32
CPCC08G18/282C08G18/2825C08G18/2885C08G18/3271C08G18/3275C08G18/792C09D5/32C09D175/04
Inventor 堀口健二松田久明
Owner TOSOH CORP