Claims
- 1. A high solids content resin composition comprising, as essential components, an acrylic oligomer (a) having a blocked hydroxyl group, a number-average molecular weight of 1,500 or less and a hydroxyl group concentration after dissociation of 2.2 mole/1,000 g or more, a curing agent (b) having a reactivity with a hydroxyl group, a dissociation or curing catalyst (c), and a polyester oligomer (d) having a number-average molecular weight of 1,500 or less and a hydroxyl group concentration of 2.0 mole/1,000 g or more, wherein said acrylic oligomer (a) has a blocked hydroxyl group represented by formula (I), (II) or (III) and a ratio of a concentration of the blocked hydroxyl group to that of the non-blocked hydroxyl group is 50% or more: ##STR5## wherein R.sub.1 and R.sub.2, which may be the same or different, each represents an alkyl group having 1 to 18 carbon atoms, a phenyl group, an aryl group, a hydrogen atom, a chlorine atom, or a fluorine atom; and R.sub.3 represents an alkyl group having 1 to 18 carbon atoms, a phenyl group, or an aryl group; ##STR6## wherein R.sub.4 represents a hydrogen atom or an alkyl group having 1 to 10 carbon atoms; and R.sub.5 represents an alkyl group having 1 to 22 carbon atoms, which is substituted with at least one kind of an atomic group selected from the group consisting of a cycloalkyl group, an aralkyl group, an aryl group, an alkoxyl group, an alkanoyloxy group, an alkyl group having 1 to 18 carbon atoms, and a halogen atom; ##STR7## wherein X represents an alkylene group having 1 to 18 carbon atoms, which may be substituted with at least one kind of an atomic group selected from the group consisting of an alkoxyl group, an aralkyl group, an aryl group, an aryloxy group, an alkanoyloxy group, an alkyl group having 1 to 10 carbon atoms, and a halogen atom.
- 2. The high solids content resin composition as in claim 1, wherein said acrylic oligomer (a) has a blocked hydroxyl group represented by formula (I): ##STR8## wherein R.sub.1 and R.sub.2, which may be the same or different, each represents an alkyl group having 1 to 18 carbon atoms, a phenyl group, an aryl group, a hydrogen atom, a chlorine atom, or a fluorine atom; and R.sub.3 represents an alkyl group having 1 to 18 carbon atoms, a phenyl group, or an aryl group.
- 3. The high solids content resin composition as in claim 2, wherein said polyester oligomer (d) has a number-average molecular weight of 400 to 1,000.
- 4. The high solids content resin composition as in claim 1, wherein said polyester oligomer (d) has a number-average molecular weight of 400 to 1,000.
- 5. A high solids content paint comprising an acrylic oligomer (a) having a blocked hydroxyl group, a number-average molecular weight of 1,500 or less and a hydroxyl group concentration after dissociation of 2.2 mole/1,000 g or more, a curing agent (b) having a reactivity with a hydroxyl group, a dissociation or curing catalyst (c), and a polyester oligomer (d) having a number average molecular weight of 1,500 or less and a hydroxyl group concentration of 2.0 mole/1,000 g or more, wherein said acrylic oligomer (a) has a blocked hydroxyl group represented by formula (I), (II) or (III) and a ratio of a concentration of the blocked hydroxyl group to that of a non-blocked hydroxyl group is 50% or more: ##STR9## wherein R.sub.1 and R.sub.2, which may be the same or different, each represents an alkyl group having 1 to 18 carbon atoms, a phenyl group, an aryl group, a hydrogen atom, a chlorine atom, or a fluorine atom; and R.sub.3 represents an alkyl group having 1 to 18 carbon atoms, a phenyl group, or an aryl group; ##STR10## wherein R.sub.4 represents a hydrogen atom or an alkyl group having 1 to 10 carbon atoms; and R.sub.5 represents an alkyl group having 1 to 22 carbon atoms, which is substituted with at least one kind of an atomic group selected from the group consisting of a cycloalkyl group, an aralkyl group, an alkoxyl group, an alkanoyloxy group, an alkyl group having 1 to 18 carbon atoms, and a halogen atom; ##STR11## wherein X represents an alkylene group having 1 to 18 carbon atoms, which may be substituted with at least one kind of an atomic group selected from the group consisting of an alkoxyl group, an aralkyl group, and aryl group, an aryloxy group, an alkanoyloxy group, an alkyl group having 1 to 10 carbon atoms, and a halogen atom.
- 6. The high solids content paint as in claim 5, wherein said acrylic oligomer (a) has a blocked hydroxyl group represented by formula (I): ##STR12## wherein R.sub.1 and R.sub.2, which may be the same or different, each represents an alkyl group having 1 to 18 carbon atoms, a phenyl group, an aryl group, a hydrogen atom, a chlorine atom, or a fluorine atom; and R.sub.3 represents an alkyl group having 1 to 18 carbon atoms, a phenyl group, or an aryl group.
- 7. The high solids content paint as in claim 6, wherein said polyester oligomer (d) has a number-average molecular weight of 400 to 1,000.
- 8. The high solids content paint as in claim 5, wherein said polyester oligomer (d) has a number-average molecular weight of 400 to 1,000.
- 9. A high solids content resin composition comprising, as essential components, an acrylic oligomer (a) having a blocked hydroxyl group, a number-average molecular weight of 1,500 or less and a hydroxyl group concentration after dissociation of 2.2 mole/1,000 g or more, a curing agent (b) having a reactivity with a hydroxyl group, a dissociation or curing catalyst (c), an acid anhydride group-containing compound (e) having a number-average molecular weight of 1,500 or less, and an epoxy compound (f) having a number-average molecular weight of 1,500 or less, wherein said acrylic oligomer (a) has a blocked hydroxyl group represented by formula (I), (II) or (III) and a ratio of a concentration of the blocked hydroxyl group to that of a non-blocked hydroxyl group is 50% or more: ##STR13## wherein R.sub.1 and R.sub.2, which may be the same or different, each represents an alkyl group having 1 to 18 carbon atoms, a phenyl group, an aryl group, a hydrogen atom, a chlorine atom, or a fluorine atom; and R.sub.3 represents an alkyl group having 1 to 18 carbon atoms, a phenyl group, or an aryl group; ##STR14## wherein R.sub.4 represents a hydrogen atom or an alkyl group having 1 to 10 carbon atoms; and R.sub.5 represents an alkyl group having 1 to 22 carbon atoms, which is substituted with at least one kind of an atomic group selected from the group consisting of a cycloalkyl group, an aralkyl group, an aryl group, an alkoxyl group, an alkanoyloxy group, an alkyl group having 1 to 18 carbon atoms, and a halogen atom; ##STR15## wherein X represents an alkylene group having 1 to 18 carbon atoms, which may be substituted with at least one kind of an atomic group selected from the group consisting of an alkoxyl group, an aralkyl group, an aryl group, an aryloxy group, an alkanoyloxy group, an alkyl group having 1 to 10 carbon atoms, and a halogen atom.
- 10. The high solids resin composition as in claim 9, wherein said acrylic oligomer (a) has a blocked hydroxyl group represented by formula (I): ##STR16## wherein R.sub.1 and R.sub.2, which may be the same or different, each represents an alkyl group having 1 to 18 carbon atoms, a phenyl group, an aryl group, a hydrogen atom, a chlorine atom, or a fluorine atom, and R.sub.3 represents an alkyl group having 1 to 18 carbon atoms, a phenyl group, or an aryl group.
- 11. The high solids content resin composition as in claim 10, wherein said acid anhydride group-containing compound (e) is an acid anhydride group-containing vinyl copolymer having a number-average molecular weight of 1,200 or less.
- 12. The high solids content resin composition as in claim 10, wherein the weight ratio of components (a):(b):(e):(f) is (5-60):(60-15):(5-30):(30-5).
- 13. The high solids content resin composition as in claim 9, wherein said acid anhydride group-containing compound (e) is an acid anhydride group-containing vinyl copolymer having a number-average molecular weight of 1,200 or less.
- 14. The high solids content resin composition as in claim 9, wherein the weight ratio of components (a):(b):(e):(f) is (5-60):(60-15):(5-30):(30-5).
- 15. A high solids content paint comprising, as essential components, an acrylic oligomer (a) having a blocked hydroxyl group, a number-average molecular weight of 1,500 or less and a hydroxyl group concentration after dissociation of 2.2 mole/1,000 g or more, a curing agent (b) having a reactivity with a hydroxyl group, a dissociation or curing catalyst (c), an acid anhydride group-containing compound (e) having a number-average molecular weight of 1,500 or less, and an epoxy compound (f) having a number-average molecular weight of 1,500 or less, wherein said acrylic oligomer (a) has a blocked hydroxyl group represented by formula (I), (II) or (III) and a ratio of a concentration of the blocked hydroxyl group to that of a non-blocked hydroxyl group is 50% or more: ##STR17## wherein R.sub.1 and R.sub.2, which may be the same or different, each represents an alkyl group having 1 to 18 carbon atoms, a phenyl group, an aryl group, a hydrogen atom, a chlorine atom, or a fluorine atom; and R.sub.3 represents an alkyl group having 1 to 18 carbon atoms, a phenyl group, or an aryl group; ##STR18## wherein R.sub.4 represents a hydrogen atom or an alkyl group having 1 to 10 carbon atoms; and R.sub.5 represents an alkyl group having 1 to 22 carbon atoms, which is substituted with at least one kind of an atomic group selected from the group consisting of a cycloalkyl group, an aralkyl group, an aryl group, an alkoxyl group, an alkanoyloxy group, an alkyl group having 1 to 18 carbon atoms, and a halogen atom; ##STR19## wherein X represents an alkylene group having 1 to 18 carbon atoms, which may be substituted with at least one kind of an atomic group selected from the group consisting of an alkoxyl group, an aralkyl group, an aryl group, an aryloxy group, an alkanoyloxy group, an alkyl group having 1 to 10 carbon atoms, and a halogen atom.
- 16. The high solids content paint as in claim 15, wherein said acrylic oligomer (a) has a blocked hydroxyl group represented by formula (I): ##STR20## wherein R.sub.1 and R.sub.2, which may be the same or different, each represents an alkyl group having 1 to 18 carbon atoms, a phenyl group, an aryl group, a hydrogen atom, a chlorine atom, or a fluorine atom; and R.sub.3 represents an alkyl group having 1 to 18 carbon atoms, a phenyl group, or an aryl group.
- 17. The high solids content paint as in claim 16, wherein said acid anhydride group-containing compound (e) is an acid anhydride group-containing vinyl copolymer having a number-average molecular weight of 1,200 or less.
- 18. The high solids content paint as in claim 16, wherein the weight ratio of components (a):(b):(e):(f): is (5-60):(60-15):(5-30):(30-5).
- 19. The high solids content paint as in claim 15, wherein said acid anhydride group-containing compound (e) is an acid anhydride group-containing vinyl copolymer having a number-average molecular weight of 1,200 or less.
- 20. The high solids content paint as in claim 15, wherein the weight ratio of components (a):(b):(e):(f): is (5-60):(60-15):(5-30):(30-5).
Priority Claims (3)
| Number |
Date |
Country |
Kind |
| 4-283309 |
Oct 1992 |
JPX |
|
| 4-283310 |
Oct 1992 |
JPX |
|
| 4-302622 |
Nov 1992 |
JPX |
|
Parent Case Info
This is a Divisional of application Ser. No. 08/556,827 filed Nov. 2, 1995, now U.S. Pat. No. 5,705,567, which is a continuation of Ser. No. 08/138,433 filed Oct. 20, 1993, abandoned.
US Referenced Citations (3)
Foreign Referenced Citations (1)
| Number |
Date |
Country |
| 03250016 |
Nov 1991 |
JPX |
Divisions (1)
|
Number |
Date |
Country |
| Parent |
556827 |
Nov 1995 |
|
Continuations (1)
|
Number |
Date |
Country |
| Parent |
138433 |
Oct 1993 |
|
Patent Grant
5945483
