公开(公告)号：EP3072925A1

公开(公告)日：2016-09-28

申请号：EP16160914.4

申请日：2016-03-17

Applicant: Dow Global Technologies LLC

Inventor： DRUMRIGHT, RAY E. ,  KAINZ, BERNHARD ,  LUNDGARD, RICHARD A. ,  TANG, HOUXIANG ,  WILBUR, JEFFREY ,  STANTS, CYNTHIA

IPC: C08L23/08 ,  C08L23/14

CPC classification number: C09D123/12 ,  C08K5/1345 ,  C08L23/0815 ,  C08L23/142 ,  C08L51/06 ,  C08L2201/08 ,  C08L2201/54 ,  C08L2205/025 ,  C08L2205/03 ,  C09D5/00 ,  C09D7/48 ,  C09D7/65 ,  C09D123/0815 ,  C09D123/10 ,  C09J123/0815 ,  C09J123/10 ,  C08F210/16 ,  C08F210/14 ,  C08F210/06

Abstract: The present invention provides aqueous polyolefin dispersion compositions for use in metal coatings, such as can coatings, comprising one or more polyolefin base polymer, one or more at least partially neutralized olefinic stabilizing agent having an acid number (AN) of from 80 to 250, preferably, a polyolefin stabilizing agent, such as an olefin-carboxylic acid copolymer or a blend of two such polymers, an optional coupling agent having an acid number (AN) of from 10 to 70 and a melt index of from 500 to 5,000,000 grams of polymer melt passing in 10 minutes through a heated syringe or cylinder at 190 °C with a plunger loaded with 2.16 kg, preferably, a polymer, and a hindered phenolic antioxidant containing an ester linkage dispersed in the polyolefin dispersion composition. The hindered phenolic antioxidant containing an ester linkage can be masterbatched with a polyolefin base polymer, polyolefin stabilizing agent or a coupling agent which is a polymer, melt mixed with the remaining polyolefin composition and then dispersed with aqueous media and a neutralizing agent to form the aqueous dispersion.

Abstract translation: 本发明提供用于金属涂料例如罐涂料的含水聚烯烃分散体组合物，其包含一种或多种聚烯烃基础聚合物，一种或多种至少部分中和的烯属稳定剂，其酸值（AN）为80-250， 优选地，聚烯烃稳定剂如烯烃 - 羧酸共聚物或两种这样的聚合物的共混物，任选的酸值（AN）为10至70且熔体指数为500至5,000,000克的偶联剂 聚合物熔体在190℃用加载有2.16kg，优选聚合物的柱塞和含有分散在聚烯烃分散体组合物中的酯键的受阻酚抗氧化剂通过加热的注射器或圆筒在10分钟内通过。 含有酯键的受阻酚抗氧化剂可以与聚烯烃基础聚合物，聚烯烃稳定剂或聚合物偶联剂一起进行母炼胶，与剩余的聚烯烃组合物熔融混合，然后用水介质和中和剂分散以形成水溶液 分散。