Mixing of organosulfur molecular weight modifier with emulsifier

Synthetic resins or natural rubbers -- part of the class 520 ser – Synthetic resins – Polymers from only ethylenic monomers or processes of...

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Other Related Categories

526213, 526221, 526222, 526223, 526225, 526251, 526293, 526295, 526328, 526330, 526335, 526340, 526341, 526346, C08F 1208, C08F 3606

Type

Patent

Status

active

Patent number

040643379

Description

ABSTRACT:
Organosulfur molecular weight regulators for emulsion polymerization systems, such as mercaptan compounds, are mixed and agitated with the aqueous emulsifier prior to use in emulsion polymerization systems. The modifying efficiency of the organosulfur molecular weight modifiers can be controlled by the degree of agitation. In many cases, adding the agitated mixture incrementally to the emulsion polymerization system further improves effectiveness of the modifier.

REFERENCES:
patent: 2523596 (1950-09-01), Schulze et al.
patent: 3267061 (1966-08-01), Senior et al.
patent: 3396153 (1968-08-01), Vitalis et al.
patent: 3523111 (1970-08-01), Bibeau et al.

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