Polymer having unsaturated cycloaliphatic functionality and coating compositions therefrom
원문보기
IPC분류정보
국가/구분
United States(US) Patent
등록
국제특허분류(IPC7판)
B29D-022/00
B29D-023/00
B32B-001/08
B32B-015/08
출원번호
US-0267928
(2011-10-07)
등록번호
US-8449960
(2013-05-28)
발명자
/ 주소
Skillman, Charles
Share, Paul E.
Paulson, Greg
Evans, Richard H.
Prouvost, Benoit
Stenson, Paul
출원인 / 주소
Valspar Sourcing, Inc.
인용정보
피인용 횟수 :
13인용 특허 :
42
초록▼
A polymer is provided that preferably includes at least one unsaturated cycloaliphatic group. In one embodiment, the polymer is combined with an optional crosslinker and an optional carrier to form a coating composition suitable for use in coating articles such as packaging articles. In one embodime
A polymer is provided that preferably includes at least one unsaturated cycloaliphatic group. In one embodiment, the polymer is combined with an optional crosslinker and an optional carrier to form a coating composition suitable for use in coating articles such as packaging articles. In one embodiment, the polymer has at least one unsaturated cycloaliphatic group that is at least bicyclic.
대표청구항▼
1. An article comprising: a metal substrate of a food or beverage container or a portion thereof; anda coating applied on at least a portion of a surface of the metal substrate, wherein the coating is formed from a coating composition comprising: a binder polymer having: a Tg of at least 25° C.;a ba
1. An article comprising: a metal substrate of a food or beverage container or a portion thereof; anda coating applied on at least a portion of a surface of the metal substrate, wherein the coating is formed from a coating composition comprising: a binder polymer having: a Tg of at least 25° C.;a backbone or pendant unsaturated at least bicyclic group with a double bond located between carbon atoms of a ring, andan iodine value of at least about 10; anda crosslinker. 2. The article of claim 1, wherein the crosslinker comprises a resole phenolic crosslinker. 3. The article of claim 1, wherein the binder polymer has a polymer backbone that includes at least one heteroatom. 4. The article of claim 1, wherein the unsaturated at least bicyclic group is provided by nadic acid, methyl-nadic acid, or an anhydride or derivative thereof. 5. The article of claim 1, wherein the binder polymer comprises a polyester polymer having a Tg of from 25 to 130° C. 6. The article of claim 1, wherein the binder polymer comprises a polyester polymer, with the proviso that the binder polymer is not an alkyd. 7. The article of claim 1, wherein the binder polymer includes less than 3 weight percent of fatty acids and oils, based on the total non-volatile weight of ingredients used to make the binder polymer. 8. The article of claim 1, wherein the binder polymer includes less than 1 weight percent of long-chain hydrocarbons including eight or more carbon atoms, based on the total non-volatile weight of ingredient used to make the binder polymer. 9. The article of claim 1, wherein the binder polymer includes a plurality of the unsaturated at least bicyclic groups that constitute at least about 5 weight percent of the binder polymer. 10. The article of claim 1, wherein the binder polymer comprises an aromatic polyester polymer that includes at least 5 weight percent of aromatic groups. 11. The article of claim 1, wherein the composition, based on nonvolatile weight, includes from 5 to 50 weight percent of resole phenolic crosslinker and from 50 to 95 weight percent of the binder polymer. 12. The article of claim 1, wherein the coating composition includes a liquid carrier. 13. The article of claim 1, wherein the coating comprises a cured coating. 14. The article of claim 1, wherein the article comprises a metal food or beverage can or portion thereof and the coating is applied to an interior surface. 15. The article of claim 1, wherein the binder polymer is a reaction product of one or more of maleic acid or anhydride, and wherein a structural unit derived from maleic acid or anhydride includes the unsaturated at least bicyclic group. 16. The article of claim 15, wherein the structural unit is a Diels-Alder reaction product. 17. The article of claim 1, wherein the at least bicyclic group comprises a structure represented by the nomenclature expression: bicyclo[x,y,z]alkene;wherein: x is 2 or more,y and z are each at least 1, andthe term “alkene” denotes that the bicyclic group includes one or more carbon-carbon double bonds. 18. The article of claim 17, wherein the at least bicyclic group comprises bicyclo[2.1.1]hexene, bicyclo[2.2.1]heptene, bicyclo[2.2.1]heptadiene, bicyclo[2.2.2]octene, bicyclo[2.2.2]octadiene, or a combination thereof. 19. An article comprising: a metal substrate of a food or beverage container or a portion thereof; anda coating applied on at least a portion of a surface of the metal substrate, wherein the coating is formed from a coating composition comprising: a polyester binder polymer having: a divalent backbone segment that includes an unsaturated at least bicyclic group with a double bond located between carbon atoms of a ring, wherein the backbone segment is connected on each end to another portion of the backbone via a step-growth linkage, andan iodine value of at least about 10; anda resole phenolic crosslinker. 20. The article of claim 19, wherein the unsaturated at least bicyclic group comprises a Diels-Alder reaction product of a structural unit derived from maleic acid or anhydride. 21. The article of claim 19, wherein the unsaturated at least bicyclic group is provided by nadic acid, nadic anhydride, methyl-nadic acid, or methyl-nadic anhydride. 22. The article of claim 19, wherein the coating comprises a cured coating. 23. The article of claim 22, wherein the crosslinker comprises a resole phenolic crosslinker covalently attached to the binder polymer through a covalent linkage resulting from the reaction of the unsaturated at least bicyclic group and the resole phenolic crosslinker. 24. A coating composition, comprising: a polyester binder polymer having: a backbone having a divalent backbone segment that includes an unsaturated at least bicyclic group with a double bond located between carbon atoms of a ring, wherein the backbone segment is connected on each end to another portion of the backbone via a step-growth linkage, andan iodine value of at least about 10; anda resole phenolic crosslinker.
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