PROCESS TO PREPARE ADDITIVE PACKAGES FOR USE IN PVC COMPOUNDING

Title:

PROCESS TO PREPARE ADDITIVE PACKAGES FOR USE IN PVC COMPOUNDING

Document Type and Number:

Japanese Patent JP2013014765

Kind Code:

A

Abstract:

To provide a process for preparing a one-pack additive package for use in PVC compounding, which has a practical and versatile means.

The process includes the steps of: absorbing liquid additives, if any, into a nucleus; blending the nucleus with solid lubricant(s); and then blending optional solid additives and optional drying agents therewith to obtain a free-flowing, dry blend, particulate one-pack. The resulting layered dry blend composition may then be pelletized, if desired. Because liquids are absorbed into the nucleus and then the temperature is maintained, during and after the lubricant blending step, at least 5°C below the melt temperature of the lowest melting lubricant wax, no free liquids are present and potential interactions between additives are avoided.

Inventors:

LELLIS TADEU
DE LIMA PEDRO M
CHO JIAN-YANG

Application Number:

JP2012146414A

Publication Date:

January 24, 2013

Filing Date:

June 29, 2012

Export Citation:

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Assignee:

DOW BRASIL SA
ROHM & HAAS

International Classes:

C10M177/00; B29B7/88; C10M107/38; C10M125/02; C10M125/10; C10M125/30; C10M129/10; C10M129/24; C10M129/32; C10M129/40; C10M133/38; C10M143/02; C10M145/14; C10M159/06; C10N10/04; C10N10/06; C10N10/08; C10N30/00; C10N40/00; C10N70/00

Attorney, Agent or Firm:

Hiroshi Kobayashi
Norio Omori
Yasuhito Suzuki

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