Method for manufacturing glove

Patent metadata

Field	Value
Publication number	US-11058162-B2
Application number	US-201716079287-A
Country	US
Kind code	B2
Filing date	Feb 24, 2017
Priority date	Feb 25, 2016
Publication date	Jul 13, 2021
Grant date	Jul 13, 2021

Abstract

A method for producing a glove, including a step of forming a dip-molded layer by dip-molding a latex composition containing a latex of a carboxyl group-containing conjugated diene rubber (A) and a metal compound (B) including a divalent or higher metal, and is substantially free from sulfur and/or a sulfur-containing compound as a cross-linking agent, and a step of irradiating the dip-molded layer with radiation.

First claim

The invention claimed is:

1. A method for producing a glove, comprising:
forming a dip molded layer by dip-molding a latex composition comprising a latex of a carboxyl group-containing conjugated diene rubber (A) and a metal compound (B) comprising a divalent or higher metal, and is substantially free from sulfur and/or a sulfur-containing compound as a cross-linking agent; and
irradiating the dip-molded layer with γ-rays so as to cross-link a carbon-carbon double bond moiety of a conjugated diene monomer unit of the carboxyl group-containing conjugated diene rubber (A).

2. The method for producing a glove according to claim 1 , wherein the carboxyl group-containing conjugated diene rubber (A) is at least one selected from a carboxyl group-containing nitrile rubber (a1), a carboxyl group-containing styrene-butadiene rubber (a2), and a carboxyl group-containing butadiene rubber (a3).

3. The method for producing a glove according to claim 1 , wherein the metal compound (B) comprising a divalent or higher metal comprises a metal compound including a trivalent or higher metal.

4. The method for producing a glove according to claim 1 , wherein as the metal compound (B) comprising a divalent or higher metal, both of a metal compound comprising a trivalent or higher metal and a metal compound including a divalent metal are used.

5. The method for producing a glove according to claim 3 , wherein the metal compound comprises a trivalent or higher metal is an aluminum compound.

6. The method for producing a glove according to claim 3 , wherein the latex composition further comprises at least one alcoholic hydroxyl group-containing compound (C) selected from a saccharide (c1), a sugar alcohol (c2), a hydroxy acid (c3), and a hydroxy acid salt (c4).

7. The method for producing a glove according to claim 1 , wherein the metal compound (B) comprising a divalent or higher metal has a content in the latex composition of 0.1 to 5 parts by weight, based on 100 parts by weight of the carboxyl group-containing conjugated diene rubber (A) included in the latex.

8. The method for producing a glove according to claim 1 , wherein the irradiating is performed so that the absorption dose of radiation for irradiation is in a range of 1 to 500 kGy.

9. The method for producing a glove according to claim 1 , wherein the irradiating is performed so that the absorption dose of radiation for irradiation is in a range of 5 to 300 kGy.

10. The method for producing a glove according to claim 1 , wherein the irradiating is performed so that the absorption dose of radiation for irradiation is in a range of 10 to 100 kGy.

11. The method for producing a glove according to claim 1 , wherein the latex composition further comprises at least one alcoholic hydroxyl group-containing compound (C) selected from a sugar alcohol (c2) and a hydroxy acid salt (c4).

Assignees

• Zeon Corp

Inventors

• Kitagawa Masaru
• Yamamoto Misa

Classifications

• C08K3/24 Primary

  Acids; Salts thereof {(C08K3/16 takes precedence)} · CPC title

• C08K3/00

  Use of inorganic substances as compounding ingredients · CPC title

• C08L13/02

  Latex · CPC title

• C08J3/28

  Treatment by wave energy or particle radiation · CPC title

• B29K2105/24

  crosslinked or vulcanised · CPC title