Chlorinated vinyl chloride resin

Patent metadata

Field	Value
Publication number	US-12110385-B2
Application number	US-202017436910-A
Country	US
Kind code	B2
Filing date	Mar 27, 2020
Priority date	Mar 29, 2019
Publication date	Oct 8, 2024
Grant date	Oct 8, 2024

Abstract

The present invention provides a chlorinated polyvinyl chloride resin that not only has high heat resistance and high mechanical strength but also is excellent in molding processability and is very easy to soften and additionally enables production of a molded article with high gloss. The present invention relates to a chlorinated polyvinyl chloride resin, containing three components including a A 150 component, a B 150 component, and a C 150 component, and having a percentage of the C 150 component (C 150 component/(A 150 component+B 150 component+C 150 component)) of 8.0% or more and 30.0% or less, the three components being identified by measuring the chlorinated polyvinyl chloride resin by a solid echo method using pulse NMR at 150° C. to give a free induction decay curve of 1 H spin-spin relaxation, and subjecting the free induction decay curve to waveform separation into three curves derived from the A 150 component, the B 150 component, and the C 150 component in order of shorter relaxation time using the least square method.

First claim

The invention claimed is:

1. A chlorinated polyvinyl chloride resin,
comprising three components including a A 150 component, a B 150 component, and a C 150 component, and
having a percentage of the C 150 component (C 150 component/(A 150 component+B 150 component+C 150 component)) of 8.0% or more and 50.0% or less,
the three components being identified by measuring the chlorinated polyvinyl chloride resin by a solid echo method using pulse NMR at 150° C. to give a free induction decay curve of 1 H spin-spin relaxation, and subjecting the free induction decay curve to waveform separation into three curves derived from the A 150 component, the B 150 component, and the C 150 component in order of shorter relaxation time using the least square method,
wherein the chlorinated polyvinyl chloride resin has a degree of polymerization of 100 to 2,000, and
wherein the chlorinated polyvinyl chloride resin contains units (a) to (c) represented by the following formulas (a) to (c), and a proportion of the structural unit (a) is 5.0 mol % or higher and 90.0 mol % or lower, a proportion of the structural unit (b) is 5.0 mol % or higher and 40.0 mol % or lower, and a proportion of the structural unit (c) is 5.0 mol % or higher and 55.0 mol % or lower, relative to total number of moles of the structural units (a), (b), and (c)
—CH 2 —CHCl—  (a)

—CH 2 —CCl 2 —  (b)

—CHCl—CHCl—  (c).

2. The chlorinated polyvinyl chloride resin according to claim 1 ,
wherein the chlorinated polyvinyl chloride resin comprises two components including a A 100 component and a B 100 component, and has a percentage of the B 100 component (B 100 component/(A 100 component+B 100 component)) of 9.0% or more and 30.0% or less, and
the two components are identified by measuring the chlorinated polyvinyl chloride resin by a solid echo method using pulse NMR at 100° C. to give a free induction decay curve of 1H spin-spin relaxation, and subjecting the free induction decay curve to waveform separation into two curves derived from the A 100 component and the B 100 component in order of shorter relaxation time using the least square method.

3. The chlorinated polyvinyl chloride resin according to claim 1 , having an amount of added chlorine of 1.0 to 16.0% by mass.

4. A resin composition for molding, comprising the chlorinated polyvinyl chloride resin according to claim 1 .

5. The resin composition for molding according to claim 4 , comprising 1 to 30% by mass of an impact resistance modifier.

6. A molded article molded from the resin composition for molding according to claim 4 .

7. The molded article according to claim 6 , further comprising a glass fiber or a carbon fiber.

8. The molded article according to claim 6 , which is a member for use in transportation machinery.

9. The molded article according to claim 6 , which is a member for use in battery systems.

10. The chlorinated polyvinyl chloride resin according to claim 1 ,
wherein the chlorinated polyvinyl chloride resin has an amount of added chlorine of 3.2 to 12.2% by mass, and
the proportion of the structural unit (a) is 21.5 mol % or higher and 72.6 mol % or lower, the proportion of the structural unit (b) is 10.7 mol % or higher and 31.3 mol % or lower, and the proportion of the structural unit (c) is 16.7 mol % or higher and 55.0 mol % or lower.

Assignees

• Sekisui Chemical Co Ltd
• Tokuyama Sekisui Co Ltd

Inventors

• Matsumura Kenichi
• MASHINO Norikazu
• Murakami Kento
• Nakajima Nami
• Kusaka Yasunari
• Sugaya Takehisa
• Yamagata Masahiko

Classifications

• C08F8/22

  by reaction with free halogens · CPC title

• C08L2203/30

  used for thermoforming · CPC title

• C08L2201/08

  Stabilised against heat, light or radiation or oxydation · CPC title

• C08F14/06

  Vinyl chloride · CPC title

• C08J5/043

  with glass fibres · CPC title