Single package 100 percent solids urethane coating compositions

Claim 2

A SINGLE PACK LIQUID 100 PERCENT SOLIDS COMPOSITION OF EXTENDED POTLIFE CONSISTING ESSENTIALLY OF:

Claim 3

AN ORGANIC POLYISOCYANATE, II. A POLYOL COMPRISING A. FROM ABOUT 10 TO ABOUT 100 MOLE PERCENT OF A POLYCAPROLACTONE POLYOL, POLYETHER POLYOL OR POLYESTER POLYOL HAVING AN AVERAGE MOLECULAR WEIGHT OF FROM ABOUT 300 TO ABOUT 4,000 AND CONTAINING FROM 2 TO 6 HYDROXYL GROUPS AND, B. FROM 0 TO ABOUT 90 MOLE PERCENT OF AN ALKYLENE GLYCOL OF FROM 2 TO 12 CARBON ATOMS OR A MIXTURE OF AN ALKYLENE GLYCOL AND AN ALKANOLAMINE OF FROM 2 TO 12 CARBON ATOMS, III. FROM ABOUT 0.001 TO ABOUT 0.5 WEIGHT PERCENT OF A DIALKYLTIN DIACYLATE CATALYST IN WHICH THE ALKYL GROUP CONTAINS FROM 2 TO 8 CARBON ATOMS AND THE ACYLATE GROUP CONTAINS FROM 2 TO 20 CARBON ATOMS AND WHICH IS SOLUBLE IN SAID COATING COMPOSITION, AND IV FROM ABOUT 0.05 TO ABOUT 3 WEIGHT PERCENT OF AN ORGANIC CARBOXYLIC ACID HAVING FROM 1 TO ABOUT 15 CARBON ATOMS, WHEREIN THE MOLE RATIO OF III TO IV IS FROM ABOUT 0.001:1 TO ABOUT 0.1:1.

Claim 4

AN ORGANIC POLYISOCYANATE, II. A POLYOL COMPRISING A. FROM ABOUT 10 TO ABOUT 100 MOLE PERCENT OF A POLYCAPROLACTONE POLYOL, POLYETHER POLYOL OR POLYESTER POLYOL HAVING AN AVERAGE MOLECULAR WEIGHT OF FROM ABOUT 300 TO ABOUT 4,000 AND CONTAINING FROM 2 TO 6 HYDROXYL GROUPS AND, B. FROM 0 TO ABOUT 90 MOLE PERCENT OF AN ALKYLENE GLYCOL OF FROM 2 TO 12 CARBON ATOMS OR A MIXTURE OF AN ALKYLENE GLYCOL AND AN ALKANOLAMINE OF FROM 2 TO 12 CARBON ATOMS, III. FROM ABOUT 0.001 TO ABOUT 0.5 WEIGHT PERCENT OF A DIALKYLTIN DIACYLATE CATALYST IN WHICH THE ALKYL GROUP CONTAINS FROM 2 TO 8 CARBON ATOMS AND THE ACYLATE GROUP CONTAINS FROM 2 TO 20 CARBON ATOMS AND WHICH IS SOLUBLE IN SAID COATING COMPOSITION, AND IV FROM ABOUT 0.05 TO ABOUT 3 WEIGHT PERCENT OF AN ORGANIC CARBOXYLIC ACID HAVING FROM 1 TO ABOUT 15 CARBON ATOMS, WHEREIN THE MOLE RATIO OF III TO IV IS FROM ABOUT 0.001:1 TO ABOUT 0.1:1.

Claim 5

A single package liquid 100 percent solids composition as claimed in claim 1, wherein said polyol II (a) has an average molecular weight of from about 300 to 3,000 and contains from 2 to 3 hydroxyl groups.

Claim 6

A single package liquid 100 percent solids composition as claimed in claim 1, wherein said dialkyltin diacylate III is a compound in which the alkyl group contains from 4 to 6 carbon atoms and the acylate group contains from 8 to 16 carbon atoms.

Claim 7

A single package liquid 100 percent solids composition as claimed in claim 1, wherein said organic carboXylic acid IV has from 2 to 6 carbon atoms.

Claim 8

A single package liquid 100 percent solids composition as claimed in claim 1, wherein said dialkyltin diacylate III is present at a concentration of from about 0.003 to about 0.1 weight percent.

Claim 9

A single package liquid 100 percent solids composition as claimed in claim 3, wherein said dialkyltin diacylate III is present at a concentration of from about 0.003 to about 0.1 weight percent.

Claim 10

A single package liquid 100 percent solids composition as claimed in claim 1, wherein said organic carboxylic acid IV is present at a concentration of from about 0.1 to about 1.5 weight percent.

Claim 11

A single package liquid 100 percent solids composition as claimed in claim 4, wherein said organic carboxylic acid IV is present at a concentration of from about 0.1 to about 1.5 weight percent.

Claim 12

A single package liquid 100 percent solids composition as claimed in claim 1, wherein the mole ratio of III to IV is from about 0.003:1 to about 0.05:1.

Claim 13

A single package liquid 100 percent solids composition as claimed in claim 1, wherein said polyol II(a) is a polycaprolactone polyol.

Claim 14

A single package liquid 100 percent solids composition as claimed in claim 1, wherein said polyol II(a) is a poly (alkyleneoxy) polyether polyol.

Claim 15

A single package liquid 100 percent solids composition as claimed in claim 1, wherein said polyol II(a) is a polyester polyol.

Claim 16

A single package liquid 100 percent solids composition as claimed in claim 1, wherein said polyol II(a) is polycaprolactone diol.

Claim 17

A single package liquid 100 percent solids composition as claimed in claim 1, wherein said polyol II(a) is a poly (propyleneoxy) diol.

Claim 18

A single package liquid 100 percent solids composition as claimed in claim 1, wherein said polyol II(a) is poly (tetramethyleneoxy) diol.

Claim 19

A single package liquid 100 percent solids composition as claimed in claim 1, wherein said catalyst III is dibutyltin dilaurate.

Claim 20

A single package liquid 100 percent solids composition as claimed in claim 1, wherein said organic carboxylic acid IV is acetic acid.

Claim 21

A single package liquid 100 percent solids composition as claimed in claim 1, wherein said organic polyisocyanate I is 4, 4''- methylenebis (cyclohexylisocyanate); said polyol II is a mixture of polycaprolactone diol and 1,4 - butanediol, said catalyst III is dibutylin dilaurate and said organic carboxylic acid IV is acetic acid.

Claim 22

A single package liquid 100 percent solids composition as claimed in claim 18, wherein said polyol II is a mixture of polycaprolactone diol, polycaprolactone triol and 1,4-butanediol.

Claim 23

A single package liquid 100 percent solids composition as claimed in claim 18, wherein said polyol II is a mixture of polycaprolactone diol, 1,4-butanediol and monoethanolamine.