Polyurethane adhesive and use of the same

A polyurethane and adhesive technology, applied in the direction of polyurea/polyurethane adhesive, adhesive type, film/sheet adhesive, etc., to achieve excellent non-displacement, excellent resistance Static electricity, easy entanglement effect

Inactive Publication Date: 2017-06-30
NANYA PLASTICS CORP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0012] In order to solve the problem that the rubber surface of the surface protection film in the prior art needs to have both excellent degassing properties and no residual glue, the polyurethane adhesive of the present invention, in the composition, contains a Polyurethane copolymer grafted with siloxane compound (hereinafter referred to as modified polyurethane copolymer (A)), with unmodified polyurethane polymer or after synthesis Compared with the general polyurethane adhesive prepared by blending polysiloxane compound, after a period of time or high temperature, the polycarbamate in the modified polyurethane copolymer (A) component No siloxane compound or other foreign matter will migrate out of the polyurethane polymer, and it has excellent non-displacement properties

Method used

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  • Polyurethane adhesive and use of the same
  • Polyurethane adhesive and use of the same
  • Polyurethane adhesive and use of the same

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0113] As shown in Table 1, 50 parts by weight of polyol DL3000 (polyoxypropylene glycol (polyoxypropylene glycol), referred to as PPG, Mn=3000) containing 2 OH functional groups, 30 parts by weight of polyol containing 2 OH groups Polyol Kuraray Polyol P-5010 (3-methyl-1,5-pentanediol is polyester diol (Poly[(3-methyl-1,5-pentanediol)-alt-(adipic acid)]), Mn=5000), 15 parts by weight of polyol PC3000 (polycarbonate polyol, Mn=3000) containing 3 OH groups, 8 parts by weight of polyether silicone oil SF 8427 (DOW CORNING company) containing 2 OH groups 150 parts by weight of ethyl acetate is put into the reactor as a diluting solvent, and 15 parts by weight of fatty acid ester (isopropyl palmitate, Mn=299) is added, and 11 parts by weight of isocyanate is added when the temperature rises and stirs up to 50°C Compound HDI (hexamethylene diisocyanate), after reacting for 30 minutes, add a small amount of catalyst, after reacting for 30 minutes, add the remaining 5 parts by weight...

Embodiment 2

[0116] The same method as in Example 1, but the polyether silicone oil is changed to polyether silicone oil CS3505, the fatty acid ester is changed to isopropyl myristate, and the amount of antistatic agent is changed to 0.04 parts by weight of Ionic liquid IL-P14 and 0.2 parts by weight of anionic antistatic agent EF15. The performance of the prepared surface protection film was tested, and the results are shown in Table 1.

Embodiment 3

[0118] With the method for making of embodiment 1, but polyether silicone oil is changed to use polyether silicone oil KF-6001 (Shin-Etsu Company), and, the consumption of antistatic agent is changed to use the ionic liquid IL-P14 that comprises 0.45 parts by weight and 2.25 parts by weight of anionic antistatic agent EF15. The performance of the prepared surface protection film was tested, and the results are shown in Table 1.

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Abstract

A polyurethane adhesive is formulated using a modified polyurethane copolymer(A), a curing agent (B) and an antistatic agent(C), and the modified polyurethane copolymer (A)is grafted a polysiloxane compound to a polyurethane polymer and made by esterifying a polyol, a hydroxyl-containing polysiloxane compound, a multi-functional isocyanate compound and a fatty acid ester; since the polyurethane adhesive is not yellowish and easy to dry as well as has excellent fabricability, air bleeding performance and transparency, when attached to surfaces of an optical or electronic device, the protective film leaves no residue and protects the surface of the device keeping no flaws.

Description

technical field [0001] The present invention relates to a kind of polyurethane adhesive, especially about the polyurethane adhesive that uses polysiloxane compound to graft modification, and it is suitable for making the adhesive layer of surface protection film Use, will not cause contamination when adhered to the surface of optical or electronic components. Background technique [0002] In the prior art, the peelable protective film is a film product (hereinafter referred to as the surface protective film) that has the functions of adhesion and dustproof and scratchproof. It is often used to protect the optical or electronic components during processing, assembly or transportation. The surface of optical or electronic components (hereinafter referred to as the bonded components). [0003] The quality of described surface protective film needs to meet the following conditions: [0004] 1. Excellent degassing performance: when the surface protective film is adhered to the ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C09J175/06C09J175/08C09J7/02C09J11/06C08G18/40C08G18/48C08G18/42C08G18/44C08G18/61C09J7/22C09J7/38
CPCC09J7/255C08G18/4018C08G18/42C08G18/44C08G18/4825C08G18/61C08K5/101C09J11/06C09J175/06C09J175/08C09J2203/318C09J2301/122C08G18/792C09J7/38C09J7/22C08G18/4238C08G18/73C08G2170/40C09J2451/00C09J2467/006C09J175/04C08K5/0075C08K5/103C08G18/36C08G18/6662C08G18/837C09J5/00
Inventor 廖德超赵成礼周全王永升
Owner NANYA PLASTICS CORP
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