# US 2016/0355666 A1 · Polyvinyl chloride resin composition

> Agents: this data is available as JSON from the patentgrep API and MCP server — see https://patentgrep.com/llms.txt

- Number: US 2016/0355666 A1
- Document ID: US20160355666A1
- Status: Published application
- Kind: A1
- Application number: 15/227,038
- Filed: 2016-08-03
- Published: 2016-12-08
- Earliest claimed: 2011-08-31
- Assignees: Riken Technos Corporation
- Applicants: Riken Technos Corporation
- Inventors: KOJI SAKAI
- Web page: https://patentgrep.com/patent/US20160355666A1

## CPC

- C08K 5/12: of cyclic polycarboxylic acids
- A61J 1/10: Bag-type containers
- A61L 29/04: Macromolecular materials
- A61L 29/041: {obtained by reactions only involving carbon-to-carbon unsaturated bonds}
- A61L 29/126: {having a macromolecular matrix}
- A61L 29/141: {Plasticizers}
- A61L 29/143: {Stabilizers}
- A61L 31/04: Macromolecular materials
- A61L 31/048: {obtained by reactions only involving carbon-to-carbon unsaturated bonds (A61L31/041 takes precedence)}
- A61L 31/141: {Plasticizers}
- A61L 31/143: {Stabilizers}
- C08K 5/0016: {Plasticisers}
- C08K 5/005: {Stabilisers against oxidation, heat, light, ozone}
- C08K 5/04: Oxygen-containing compounds {(C08K5/0091 takes precedence)}
- C08K 5/1515: Three-membered rings
- C08L 27/06: Homopolymers or copolymers of vinyl chloride
- B29K 2027/06: PVC, i.e. polyvinylchloride
- C08L 91/00: Compositions of oils, fats or waxes; Compositions of derivatives thereof
- Y10T 428/1334: Nonself-supporting tubular film or bag [e.g., pouch, envelope, packet, etc.]
- Y10T 428/1352: Polymer or resin containing [i.e., natural or synthetic]
- Y10T 428/139: Open-ended, self-supporting conduit, cylinder, or tube-type article
- Y10T 428/1393: Multilayer [continuous layer]
- Y10T 428/1397: Single layer [continuous layer]
- C08K: Use of inorganic or non-macromolecular organic substances as compounding ingredients (paints, inks, varnishes, dyes, polishes, adhesives C09)
- A61J: CONTAINERS SPECIALLY ADAPTED FOR MEDICAL OR PHARMACEUTICAL PURPOSES; DEVICES OR METHODS SPECIALLY ADAPTED FOR BRINGING PHARMACEUTICAL PRODUCTS INTO PARTICULAR PHYSICAL OR ADMINISTERING FORMS; DEVICES FOR ADMINISTERING FOOD OR MEDICINES ORALLY; BABY COMFORTERS; DEVICES FOR RECEIVING SPITTLE
- A61L: METHODS OR APPARATUS FOR STERILISING MATERIALS OR OBJECTS IN GENERAL; DISINFECTION, STERILISATION OR DEODORISATION OF AIR; CHEMICAL ASPECTS OF BANDAGES, DRESSINGS, ABSORBENT PADS OR SURGICAL ARTICLES; MATERIALS FOR BANDAGES, DRESSINGS, ABSORBENT PADS OR SURGICAL ARTICLES (preservation of bodies or disinfecting characterised by the agents employed A01N; preserving, e.g. sterilising, food or foodstuffs A23; preparations for medical, dental or toiletry purposes A61K)
- C08L: COMPOSITIONS OF MACROMOLECULAR COMPOUNDS (compositions based on polymerisable monomers C08F, C08G; artificial filaments or fibres D01F; textile treating compositions D06)
- B29K: INDEXING SCHEME ASSOCIATED WITH SUBCLASSES B29B, B29C OR B29D, RELATING TO MOULDING MATERIALS OR TO MATERIALS FOR {MOULDS, } REINFORCEMENTS, FILLERS OR PREFORMED PARTS, e.g. INSERTS
- Y10T: TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION

## Abstract

PURPOSE: The present invention provides a polyvinyl chloride resin composition which is superior in heat stability and processability and has less elution from the composition. CONSTITUTION: a polyvinyl chloride resin composition comprising 100 parts by weight of a polyvinyl chloride resin, 10 to 120 parts by weight of di(2-ethylhexyl)terephthelate, and 0.5 to 20 parts by weight of epoxidized vegetable oil having a peroxide number of 5 or less.

## Claims

### Claim 1

A method for producing a medical instrument by forming a polyvinyl chloride rosin composition which comprises 100 parts by weight of a polyvinyl chloride resin, 10 to 120 parts by weight of a plasticizer consisting essentially of di(2-ethylhexyl)terephthalate, and 0.5 to 20 parts by weight of epoxidized vegetable oil having a peroxide number of 5 or less.

### Claim 2 (depends on 1)

The method according to claim 1, wherein the composition further comprises 0.05 to 10 parts by weight of silicone oil.

### Claim 3

(canceled)

### Claim 4 (depends on 1)

The method according to claim 1, wherein the instrument is a medical tube or a medical bag.

### Claim 5

(canceled)

### Claim 6

(canceled)