公开(公告)号：WO2016164742A1

公开(公告)日：2016-10-13

申请号：PCT/US2016/026671

申请日：2016-04-08

Applicant: STEPAN COMPANY

Inventor： STEVENSON, Thomas ,  POOLE, James ,  HOWELL, Jackie

IPC: C09D5/03 ,  C09D167/00 ,  C09D167/02 ,  C09D167/03 ,  C08G63/02

CPC classification number: C09D167/03 ,  C08G63/02 ,  C08G63/127 ,  C08G2150/20 ,  C08L67/00 ,  C09D5/032 ,  C09D167/00 ,  C09D167/02

Abstract: Thermosetting powdered coating compositions comprising (a) a high Acid Value carboxylic acid functional polyester resin having an Acid Value of at least 100 mg KOH/g and a functionality of at least 4.5, (b) a low Acid Value carboxylic acid functional polyester resin having an Acid Value of 20 to 50 mg KOH/g and a functionality of about 2.5 or less, and (c) a cross-linking agent. The high Acid Value polyester resin is the reaction product of a polycarboxylic acid or its anhydride reacted with a polyester polyol obtained from reacting 0 mol percent to 100 mol percent of isophthalic acid and/or 0 to 100 mol percent terephthalic acid, or a mixture thereof, with a polyol mixture comprising at least one dial and at least one polyol having at least three hydroxyl groups. The thermosetting powdered coating compositions provide coatings with low gloss levels that can be adjusted from a gloss level of less than 1 to 40 or less, when measured at an angle of 60 degrees.

Abstract translation: 热固性粉末涂料组合物，其包含（a）具有至少100mg KOH / g的酸值和至少4.5的官能度的高酸值羧酸官能聚酯树脂，（b）低酸值羧酸官能聚酯树脂，其具有 酸值为20〜50mg KOH / g，官能度为2.5以下，（c）交联剂。 高酸值聚酯树脂是多元羧酸或其酸酐与由0mol％至100mol％间苯二甲酸和/或0至100mol％对苯二甲酸或其混合物反应得到的聚酯多元醇反应的反应产物 其中多元醇混合物包含至少一个表盘和至少一种具有至少三个羟基的多元醇。 热固化粉末涂料组合物提供具有低光泽度的涂层，当以60度的角度测量时，其可以从小于1至40或更小的光泽度来调节。

公开(公告)号：EP3280772B1

公开(公告)日：2020-12-09

申请号：EP16777368.8

申请日：2016-04-08

Applicant: Stepan Company

Inventor： STEVENSON, Thomas ,  POOLE, James ,  HOWELL, Jackie

IPC: C09D5/03 ,  C09D167/00 ,  C09D167/02 ,  C09D167/03 ,  C08G63/02 ,  C08G63/91

公开(公告)号：EP3280772A1

公开(公告)日：2018-02-14

申请号：EP16777368.8

申请日：2016-04-08

Applicant: Stepan Company

Inventor： STEVENSON, Thomas ,  POOLE, James ,  HOWELL, Jackie

IPC: C09D5/03 ,  C09D167/00 ,  C09D167/02 ,  C09D167/03 ,  C08G63/02

CPC classification number: C09D167/03 ,  C08G63/02 ,  C08G63/127 ,  C08G63/91 ,  C08G2150/20 ,  C08L67/00 ,  C09D5/032 ,  C09D167/00 ,  C09D167/02

Abstract: Thermosetting powdered coating compositions comprising (a) a high Acid Value carboxylic acid functional polyester resin having an Acid Value of at least 100 mg KOH/g and a functionality of at least 4.5, (b) a low Acid Value carboxylic acid functional polyester resin having an Acid Value of 20 to 50 mg KOH/g and a functionality of about 2.5 or less, and (c) a cross-linking agent. The high Acid Value polyester resin is the reaction product of a polycarboxylic acid or its anhydride reacted with a polyester polyol obtained from reacting 0 mol % to 100 mol % of isophthalic acid and/or 0 to 100 mol % terephthalic acid, or a mixture thereof, with a polyol mixture comprising at least one diol and at least one polyol having at least three hydroxyl groups. The thermosetting powdered coating compositions provide coatings with low gloss levels that can be adjusted from a gloss level of less than 1 to 40 or less, when measured at an angle of 60°, by varying the ratios of the high Acid Value and low Acid Value polyester resins in the composition.