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Chlorinated-polyolefin-based resin composition

A polyolefin-based resin, chlorinated polyolefin technology, applied in the direction of graft polymer adhesive, adhesive type, application, etc., can solve the problems of difficult adhesion, low surface free energy, etc., and achieve excellent chipping resistance , The effect of excellent solution stability

Inactive Publication Date: 2019-11-15
NIPPON PAPER IND CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] However, polyolefin substrates are non-polar substrates, and because of their low surface free energy and crystallinity, there is a problem that inks and paints are difficult to adhere to.

Method used

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  • Chlorinated-polyolefin-based resin composition
  • Chlorinated-polyolefin-based resin composition

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0142] The ethylene-propylene random copolymer A-1 (97% by mass of the propylene component, 3% by mass of the ethylene component, MFR=2.0g / 10min, Tm A =125°C) 35 parts, ethylene-propylene block copolymer B-1 (85% by mass of the propylene component, 15% by mass of the ethylene component, MFR=20.0g / 10min, Tm B = 103°C) 65 parts, 4 parts of maleic anhydride, and 2 parts of di-tert-butyl peroxide were uniformly mixed and supplied to a twin-screw extruder (L / D=60, φ=15mm, first barrel to second barrel 14 barrel).

[0143] When the residence time is 10 minutes, the rotation speed is 200rpm, and the barrel temperature is 100°C (1st barrel, 2nd barrel), 200°C (3rd barrel~8th barrel), 90°C (9th barrel) , 10th barrel), 110°C (11th barrel to 14th barrel) to react, and perform a decompression treatment to remove unreacted maleic anhydride to obtain maleic anhydride-modified polypropylene Department of resin.

[0144] 100 parts of the obtained maleic anhydride-modified polypropylene res...

Embodiment 2

[0147] In a four-necked flask equipped with a stirrer, a condenser, and a dropping funnel, the ethylene-propylene random copolymer A-2 (99% by mass of the propylene component, 1% by mass of the ethylene component, MFR=1.5g / 10min, Tm A =140° C.) 20 parts and ethylene-propylene block copolymer B-2 (90% by mass of the propylene component, 10% by mass of the ethylene component, MFR=15g / 10min, Tm B =118°C) 80 parts were completely dissolved in an oil bath at 180°C. After nitrogen replacement in the flask for about 10 minutes, 4 parts of maleic anhydride was added over about 5 minutes while stirring, and 0.4 parts of di-tert-butyl peroxide dissolved in 1 part of heptane was added from the dropping funnel over about 30 minutes.

[0148] Thereafter, the inside of the system was kept at 180°C, and the reaction was continued for one hour. Unreacted maleic anhydride was removed for about one hour while decompressing the inside of the flask with an aspirator, and maleic anhydride-modifie...

Embodiment 3

[0152] As component (A), random copolymer A-3 of ethylene-propylene-butene (85% by mass of propylene component, 10% by mass of ethylene component, 5% by mass of butene component, MFR=3.7g / 10min 、Tm A =102° C.) 80 parts, and as component (B), ethylene-propylene block copolymer B-2 (90% by mass of the propylene component, 10% by mass of the ethylene component, MFR=15g / 10min, Tm B =118° C.) 20 parts, except that, in the same manner as in Example 1, a chlorinated polyolefin-based resin composition 3 (graft mass of maleic anhydride=1 mass %, chlorine content rate of = 24% by mass).

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Abstract

The present invention addresses the problem of providing a chlorinated-polyolefin-based resin composition which is excellent in terms of adhesiveness and solution stability and of unsusceptibility tochipping. The chlorinated-polyolefin-based resin composition comprises component (A), which is a polyolefin-based resin A having a melting point (TmA), obtained with a differential scanning calorimeter (DSC), in the range of 90-160 DEG C, and component (B), which is a polyolefin-based resin B having a melting point (TmB), obtained with a differential scanning calorimeter (DSC), in the range of 50-130 DEG C, wherein component (A) and / or component (B) is a chlorinated-polyolefin-based resin or component (A) and component (B) are a copolymer thereof which is a chlorinated polyolefin-based resin (|TmA-TmB|>=5 DEG C).

Description

technical field [0001] The present invention relates to a chlorinated polyolefin resin composition. Background technique [0002] Polyolefin substrates such as polypropylene are widely used for plastic molded parts, various films for food packaging materials, etc. due to their excellent performance and low cost. At this time, printing and coating are performed on the surface of the polyolefin substrate for the purpose of protecting the surface and improving the appearance. [0003] However, polyolefin substrates are non-polar substrates, and because of their low surface free energy and crystallinity, there is a problem that inks and paints are difficult to adhere to. Therefore, at the time of printing / coating and the like, a method of improving adhesion to polyolefin substrates by adding chlorinated polyolefin resins to inks and paints is widely used. [0004] Plastic molded products such as polyolefin base materials are also commonly used as components of automobile exter...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08L23/28C08F8/20C08F8/46C09D11/106C09D123/28C09J123/28
CPCC08F8/20C08L23/28C09D123/28C09J123/28C08L2205/025C09D11/106C08F255/04C08F287/00C09J151/003C09J151/006C08F222/06C08F8/46C08F210/16C08F255/02C08L53/00C09D5/002C08F2800/20C08L23/08C08L23/14C08L51/06C08L53/005C08L2205/02
Inventor 神埜胜浅井贤介吉元贵夫竹中天斗矢田实高本直辅
Owner NIPPON PAPER IND CO LTD
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