The present invention relates to a polyester resin obtained by reaction in a process (I) between the following components A to E to obtain a polyester P (the polyester comprising an alkyd resin and/or a saturated polyester resin), where (A) Component A (also referred to herein as the Imide and/or Imide Component) comprises one or more cyclic imides of Formula (1); where R′ represents a divalent optionally substituted saturated C
1-30
organo moiety; and R represents H or a monovalent optionally substituted saturated C
1-30
organo moiety; (A′) Optional Component A′ comprises saturated dicarboxylic acid and/or saturated hydroxyacid and that is not optional in case component A does not comprise a dicarboxylic acid or a hydroxyacid; 1(B) Component B (also referred to herein as the Polyol and/or Polyol Component) comprises at least one saturated polyhydric alcohol; (C) Optional Component C (also referred to herein as the Rosin and/or Rosin Component) comprises naturally occurring rosin, the rosin comprising from 40 to 80 parts per hundred by weight of rosin of an unsaturated mono carboxylic acid comprising at least one C
5-25
cyclohydrocarbo moiety capable of undergoing a Diels Alder or Ene reaction; (D) Optional Component D (also referred to herein as the Fatty Acid and/or Fatty Acid Component) comprises at least one linear C
2-60
hydrocarbo carboxylic acid optionally comprising at least two linoleically unsaturated double bonds; 2(E) Optional Component E (also referred to as the Other Component E) which may comprise at least one monofunctional or polyfunctional monomer other than any of Components A to D.
                            本发明涉及通过在以下组分A到E之间的过程(I)中反应获得的聚酯
树脂P(聚酯包括醇酸
树脂和/或饱和聚酯
树脂),其中(A)组分A(在此也称为
咪唑和/或
咪唑组分)包括公式(1)的一个或多个环状
咪唑;其中R'表示二价的、可选取代的饱和的C1-30有机基团;R表示H或一价的、可选取代的饱和的C1-30有机基团;(A')可选组分A'包括饱和的二
羧酸和/或饱和的羟酸,在组分A不包括二
羧酸或羟酸的情况下不是可选的;(B)组分B(在此也称为多元醇和/或多元醇组分)包括至少一种饱和的多元醇;(C)可选组分C(在此也称为
松香和/或
松香组分)包括天然存在的
松香,该
松香包括每百份重量的
松香中40至80份的不饱和单
羧酸,该不饱和单
羧酸包括至少一个可进行Diels Alder或Ene反应的C5-25
环烃基团;(D)可选组分D(在此也称为
脂肪酸和/或
脂肪酸组分)包括至少一种线性的C2-60碳氢基团
羧酸,可选包括至少两个
亚油酸不饱和双键;(E)可选组分E(也称为其他组分E)可能包括至少一种单官能团或多官能团单体,除了组分A到D中的任何一种。