Title:
【発明の名称】薄着色低分子量フェノール修飾ロジンエステル
Document Type and Number:
Japanese Patent JP2002526592
Kind Code:
A
Abstract:
Light-colored phenolic-modified rosin esters, suitable for use as, for example, tackifiers in adhesive compositions, are prepared by reacting together rosin, a phenolic compound, formaldehyde or a reactive equivalent thereof, and a non-phenolic hydroxyl-containing organic compound in the presence of at least one lightening agent selected from phenol sulfide compounds, phosphorous acid, esters of phosphorous acid, and hypophosphite salts. The formaldehyde or reactive equivalent is present in an amount ranging from about 1.1 to about 3.5 equivalents of -CHO moieties per 1 equivalent of Ar-OH moiety of the phenolic compound, in order to obtain rosin esters having desirably low color, and adequately low molecular weight to effectively function as tackifiers.
Inventors:
Flyheart, Charles Earl.
Kraka, Kenneth E.
Newman, Brett A.
Kraka, Kenneth E.
Newman, Brett A.
Application Number:
JP2000574183A
Publication Date:
August 20, 2002
Filing Date:
September 17, 1999
Export Citation:
Assignee:
International Paper Company
International Classes:
C08G8/34; C08L93/04; C09D193/04; C09J161/06; C09J161/14; C09J193/04; C09J201/00; C08L61/14; (IPC1-7): C08G8/34; C08L61/14; C08L93/04; C09J161/06; C09J161/14; C09J193/04; C09J201/00
Attorney, Agent or Firm:
Shusaku Yamamoto