Latex composition production method
AssigneeZeon Corporation
InventorsJunji Kodemura, Misa Hayashi
Life of this patent
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Abstract
A method for producing a latex composition, the method comprising a provision step of providing a conjugated diene polymer latex; a preparation step of adding a sulfur-based vulcanizing agent and a xanthogen compound to the conjugated diene polymer latex to prepare a latex composition before aging; and an aging step of, after the preparation of the latex composition before aging, aging the prepared latex composition before aging through storing of the latex composition at a temperature of 5 to 60° C. for 12 hours to 14 days, wherein the pH of the latex composition after 12 hours from the start of aging in the aging step is controlled to 9 or more.
Claims9
A method for producing a latex composition, comprising:
- a provision step of providing a conjugated diene polymer latex;
- a preparation step of adding a sulfur-based vulcanizing agent and a xanthogen compound to the conjugated diene polymer latex to prepare a latex composition before aging;
- and
- an aging step of, after the preparation of the latex composition before aging, aging the prepared latex composition before aging through storing of the latex composition at a temperature of 5 to 60° C. for 12 hours to 14 days,
- wherein:
- the aging step comprises adding a pH adjuster to the latex composition during aging, and
- the pH of the latex composition after 12 hours from the start of aging in the aging step is controlled to 9 or more.
Dependencies are inferred from the claim text.