1. A clearcoat coating composition, comprising
(a) a least one member selected from the group consisting of
(1) an acrylic polymer having both secondary hydroxyl functionality and functionality selected from the group consisting of carbamate functionality, urea functionality, and both carbamate and urea functionality and
(2) a mixture of a first acrylic polymer with secondary hydroxyl functionality and a second acrylic polymer with functionality selected from the group consisting of carbamate functionality, urea functionality, and both carbamate and urea functionality,
wherein said acrylic polymer or acrylic polymers of (a) have weight average molecular weights of at least about 2400;
(b) a carbamate-functional or urea-functional material that is the reaction product of
(1) a compound comprising a primary carbamate or primary urea group and an hydroxyl group and
(2) a compound that is reactive with hydroxyl groups on a plurality of molecules of compound (1), but that is not reactive with the carbamate or urea groups on compound (1); and
(c) a crosslinking component comprising a crosslinker reactive with active hydrogen groups.
2. A clearcoat coating composition according to claim 1, wherein said composition comprises acrylic polymer (a)(1).
3. A clearcoat coating composition according to claim 2, wherein said acrylic polymer (a)(1) has primary carbamate functionality.
4. A clearcoat coating composition according to claim 1, wherein said composition comprises mixture (a)(2).
5. A clearcoat coating composition according to claim 4, wherein said second acrylic polymer has primary carbamate functionality.
6. A clearcoat coating composition according to claim 1, wherein said secondary hydroxyl functionality is formed by reaction of a glycidyl group with a carboxylic acid group.
7. A clearcoat coating composition according to claim 1, wherein said acrylic polymer or acrylic polymers of (a) have weight average molecular weights of at least about 4000.
8. A clearcoat coating composition according to claim 1, wherein said acrylic polymer or acrylic polymers of (a) have weight average molecular weights of up to about 5000.
9. A clearcoat coating composition according to claim 1, wherein said acrylic polymer (a)(1) or said first acrylic polymer of (a)(2) has an hydroxyl equivalent weight of up to about 600 grams per equivalent.
10. A clearcoat coating composition according to claim 1, wherein said acrylic polymer (a)(1) or said first acrylic polymer of (a)(2) has an hydroxyl equivalent weight of at least about 150 grams per equivalent.
11. A clearcoat coating composition according to claim 1, wherein said acrylic polymer (a)(1) or said second acrylic polymer of (a)(2) has a carbamate equivalent weight of up to about 700 grams per equivalent.
12. A clearcoat coating composition according to claim 1, wherein said acrylic polymer (a)(1) or said second acrylic polymer of (a)(2) has a carbamate equivalent weight of at least about 350 grams per equivalent.
13. A clearcoat coating composition according to claim 1, wherein compound (b)(1) is a member selected from the group consisting of hydroxyethyl carbamate, hydroxypropyl carbamate, and hydroxybutyl carbamate.
14. A clearcoat coating composition according to claim 1, wherein compound (b)(2) is a member selected from the group consisting of the isocyanurate of isophorone diisocyanate and the isocyanurate of hexamethylene diisocyanate.
15. A clearcoat coating composition according to claim 1, wherein the clearcoat coating composition comprises about 5 weight percent to about 30 weight percent of the compound (b), based on the vehicle weight.
16. A clearcoat coating composition according to claim 1, wherein the clearcoat coating composition comprises about 10 weight percent to about 15 weight percent of the compound (b), based on the vehicle weight.
17. A clearcoat coating composition according to claim 1, further comprising a carbamate-functional or urea-functional material comprising at least two functional groups, at least one of which is a carbamate or urea group that is the reaction product of
(1) an hydroxyl group of a first compound that is the result of a ring-opening reaction between a compound with an epoxy group and a compound with an organic acid group and
(2) cyanic acid or a carbamate or urea group-containing compound.
18. A clearcoat coating composition according to claim 1, further comprising a carbamate-functional or urea-functional material that is the reaction product of
(1) a compound comprising a carbamate or urea group and an active hydrogen group that is reactive with (2), and
(2) a lactone or a hydroxy carboxylic acid.
19. A clearcoat coating composition according to claim 1, further comprising a carbamate-functional or urea-functional material that is the reaction product of
(A) the reaction product of
(1) a compound comprising a primary carbamate or primary urea group and an hydroxyl group and
(2) a lactone or a hydroxy carboxylic acid and
(B) a compound that is reactive with hydroxyl groups on a plurality of molecules of compound (A), but that is not reactive with the carbamate or urea groups on compound (A).
20. A clearcoat coating composition according to claim 1, further comprising a carbamate-functional or urea-functional material that is the reaction product of
(A) the reaction product of
(1) a compound comprising a primary carbamate or primary urea group and an hydroxyl group and
(2) a lactone or a hydroxy carboxylic acid and
(B) a compound that converts an hydroxyl group on (A) to a carbamate group, or a compound comprising a group that is reactive with a hydroxyl group and a carbamate or urea group or group that can be converted to carbamate or urea.
21. A clearcoat coating composition according to claim 1, further comprising a carbamate-functional material that is the reaction product of
(1) a first material that is the reaction product of a mixture including at least a polyisocyanate and an active hydrogen-containing chain extension agent with
(2) a compound comprising a group that is reactive with said first material and a carbamate group or group that can be converted to a carbamate group.
22. A clearcoat coating composition according to claim 1, comprising a further material having at least two carbamate groups and a hydrocarbon moiety having about 24 to about 72 carbon atoms.
23. A clearcoat coating composition according to claim 22, wherein the further material has from two to four carbamate groups.
24. A clearcoat coating composition according to claim 22, wherein the further material has two carbamate groups.
25. A clearcoat coating composition according to claim 22, wherein the hydrocarbon moiety has from about 36 to about 72 carbon atoms.
26. A clearcoat coating composition according to claim 22, wherein the hydrocarbon moiety has from about 36 to about 54 carbon atoms.
27. A clearcoat coating composition according to claim 22, wherein the hydrocarbon moiety has about 36 carbon atoms.
28. A clearcoat coating composition according to claim 1, comprising a further material having a structure selected from the group consisting of
wherein each R group is independently an alkyl of 5 to 8 carbon atoms.
29. A clearcoat coating composition according to claim 1, wherein (c) is an aminoplast crosslinker.
30. A clearcoat coating composition according to claim 1, wherein (c) is a melamine formaldehyde crosslinker.
The claims below are in addition to those above.
All refrences to claim(s) which appear below refer to the numbering after this setence.
1. A piston pump device with a support unit, a pump cylinder, and a pump piston arranged in the pump cylinder, the pump cylinder having a longitudinal center axis, and a cylinder bottom arranged perpendicular to the longitudinal center axis, the pump piston being movable relative to the cylinder bottom, and the pump cylinder being secured on the support unit by a securing unit, wherein the securing unit has a leaf spring, which permits a pivoting movement of the longitudinal center axis of the pump cylinder relative to the support unit.
2. The piston pump device as claimed in claim 1, wherein the securing unit is secured on the cylinder bottom.
3. The piston pump device as claimed in claim 1, wherein the securing unit forms a leaf spring clamp, and wherein the leaf spring clamp anchors the pump cylinder in relation to the support unit.
4. The piston pump device as claimed in claim 1, wherein the leaf spring in the undeflected state forms a plane, and wherein a rectilinear continuation of said longitudinal center axis runs in the plane.
5. The piston pump device as claimed in claim 1, wherein the leaf spring has a free length and a width, wherein the leaf spring is made flexible in its free length, and wherein the ratio of free length to width is less than 1.
6. The piston pump device as claimed in claim 1, wherein the securing unit has a single leaf spring.
7. The piston pump device as claimed in claim 1, further comprising a cylinder-side first securing element formed in one piece with the pump cylinder or welded onto the pump cylinder, or cast therein.
8. The piston pump device as claimed in claim 7, wherein the cylinder-side first securing element is arranged in the cylinder bottom.
9. The piston pump device as claimed in claim 8, wherein the cylinder bottom has a substantially plane area for closing the pump cylinder, and an outwardly protruding securing seat which is formed integrally on the plane area and which serves to receive the cylinder-side first securing element.
10. The piston pump device as claimed in claim 7, wherein the cylinder-side first securing element is a block-shaped metal piece.
11. The piston pump device as claimed in claim 1, wherein the securing unit has a cylinder-side clamping device and a support-side clamping device, wherein the leaf spring has a first end and a second end, and wherein the first end is clamped in the cylinder-side clamping device and the second end is clamped in the support-side clamping device.
12. The piston pump device as claimed in claim 11, wherein the cylinder-side clamping device and the support-side clamping device each have a first and a second securing element, wherein the leaf spring is clamped at the first end and the second end, two ends between the securing elements, and wherein a first and a second of the securing elements are in each case screwed together.
13. The piston pump device as claimed in claim 1, further comprising two pairs consisting of a pump cylinder, a piston and a securing unit, and wherein the longitudinal center axes of the pump cylinders extend parallel to each other in the undeflected state of the pump cylinders.
14. A suction pump comprising:
a piston pump device having a support unit;
a pump cylinder having a longitudinal center axis and a cylinder bottom arranged perpendicular to the longitudinal center axis;
a pump piston arranged in the pump cylinder, the piston being moveable relative to the cylinder bottom;
a securing unit for securing the pump cylinder on the support unit;
a crankshaft for moving the pump piston;
a motor for driving the crankshaft; and
a gear mechanism connecting the motor and the crankshaft, the gear mechanism being a sing-stage gear;
wherein the securing unit has a leaf spring which permits a pivoting movement of the longitudinal center axis of the pump cylinder relative to the support unit.
15. The suction pump as claimed in claim 14, wherein an adjustment and control unit is present, by means of which the motor is adjustable to at least one speed, preferably exactly three discrete speeds.
16. The suction pump as claimed in claim 15 wherein the motor is adjustable to exactly three discrete speeds.