Bowling ball having improved surface slip

Claim 2

A bowling ball having at least an outer portion fabricated from reactants comprising (i) a polyisocyanate, (ii) an active hydrogen-containing compound having an average functionality of at least 2.0, and (iii) a slip agent compound containing a moiety which imparts lubricity to said ball, said slip agent compound also having at least one active hydrogen-containing group which is reactive with isocyanate groups, wherein said slip agent compound is present in an amount between about 0.5 and about 5 weight percent based on the weight of (i) and (ii), the ratio of (i) to the total of (ii) plus (iii) being such that the reaction is conducted at an isocyanate index between about 0.90 and about 1.30.

Claim 3

A bowling ball as defined in claim 1, wherein said slip agent (iii) is blended with said active hydrogen-containing compound (ii).

Claim 4

A bowling ball as defined in claim 2, wherein said active hydrogen-containing compound is a polyether polyol, a polyester polyol, an amine-terminated polyether, or a mixture thereof.

Claim 5

A bowling ball as defined in claim 3, wherein said polyether polyol or polyester polyol has a hydroxyl number between about 20 and about 150.

Claim 6

A bowling ball as defined in claim 4, wherein said hydroxyl number is between 28 and 56.

Claim 7

A bowling ball as defined in claim 3, wherein said polyether polyol or polyester polyol has an average hydroxyl functionality from 2 to 4 and an average hydroxyl equivalent weight of 500 to 3000.

Claim 8

A bowling ball as defined in claim 6, wherein said polyether polyol or polyester polyol has an average hydroxyl functionality from 2 to 3 and an average hydroxyl equivalent weight from 1000 to 2000.

Claim 9

A bowling ball as defined in claim 3, wherein said amine-terminated polyether has a molecular weight of 1000-10,000 with a preferred range of 2000 to 7000 and has the general formula; H.sub.2 NCH.sub.2 -CXH(OCH.sub.2 CHX).sub.y NH.sub.2 where X is H or alkyl group having 1-18 carbon atoms and where y is a number of about 20-200.

Claim 10

A bowling ball as defined in claim 3, wherein said amine-terminated polyether is a triamine of poly-alkoxylated trimethylol propane having the general formula: CH.sub.3 CH.sub.2 C[CH.sub.2 (OCH.sub.2 -CHX).sub.z NH.sub.2 ].sub.3 where z is an average of 10-100.

Claim 11

A bowling ball as defined in claim 2, wherein said slip agent compound is a fatty alcohol containing 10-40 carbon atoms.

Claim 12

A bowling ball as defined in claim 10, wherein said fatty alcohol contains 15-40 carbon atoms.

Claim 13

A bowling ball as defined in claim 11, wherein said fatty alcohol contains 16-30 carbon atoms.

Claim 14

A bowling ball as defined in claim 10, wherein said fatty alcohol is n-decyl alcohol, n-undecyl alcohol, n-dodecyl alcohol, n-tetradecyl alcohol, n-hexadecyl alcohol, n-octadecyl alcohol, or isostearyl alcohol.

Claim 15

A bowling ball as defined in claim 2, wherein said slip agent is a secondary monoamine of the formula R.sup.1 -NH-R.sup.2 wherein R 1 is an aliphatic hydrocarbon group having from 10-40 carbon atoms and R 2 is an aliphatic hydrocarbon group containing 1-20 carbon atoms.

Claim 16

A bowling ball as defined in claim 2, wherein said slip agent consists essentially of 0.5-20 mol % of R a R' b SiO.sub.[4-(a+b)]/2 Units and from 99.5-80 mol % of R" c SiO.sub.(4-c)/2 units where R is an isocyanate reactive organic radical, a has an average value of from 1-3, R' and R" are hydrocarbon radicals or a substituted organic radical, b has an average value of 0-2, a+b is from 1-3, c has an average value from 1 to 3, and wherein the ratio of the total molecular weight to the total number of isocyanate reactive functional groups in the polysiloxane molecule (equivalent weight) ranges from 100-3500, the combined formula weights of all isocyanate reactive organic radicals, R do not exceed 40% of the total molecular weight of said polysiloxane slip agent, the combined formula weights of all nonisocyanate reactive radicals, R'+R" together do not exceed 40% of the total molecular weight of said polysiloxane mold release additive, the combined formula weights of all the organic radicals R+R'+R" in the molecule together do not exceed 60% of the total molecular weight of the molecule, said polysiloxane slip agent contains an average of at least two isocyanate reactive functional groups per molecule, at least two of the isocyanate reactive functional groups in each molecule are located on separate organic radicals, R, attached independently to different silicon atoms in said polysiloxane, said isocyanate reactive functional groups (R) are selected from the group consisting of alcohols, phenols, thiols, primary or secondary aromatic amines, which contain no oxygen, and not more than one nitrogen, atoms attached directly to, in conjugation with, or incorporated within, the aromatic ring nucleus, and secondary aliphatic amines wherein at least one of the alkyl carbon atoms, bonded directly to the nitrogen atom, is not a primary carbon atom, the molecular weight of said polysiloxane mold release agent ranges from 1000 to 30,000, and said polysiloxane slip agent is substantially insoluble in liquid polyisocyanate.

Claim 17

A bowling ball as defined in claim 2, wherein said polyisocyanate comprises an aromatic polyisocyanate.

Claim 18

A bowling ball as defined in claim 16, wherein said polyisocyanate is selected from toluenediisocyanate, diphenylmethane diisocyanate, methylene bridged polyphenylmethane polyisocyanates, and isomers thereof.

Claim 19

A bowling ball as defined in claim 17, wherein said diphenylmethane diisocyanate is modified to contain carbodiimide groups, uretonimine groups, urethane groups, sulfonate groups, isocyanurate groups, urea groups or biuret groups such that it is a liquid at room temperature.

Claim 20

A bowling ball as defined in claim 1, wherein said slip agent compound (iii) is prereacted with or dispersed in said polyisocyanate (i).

Claim 21

A bowling ball as defined in claim 19, wherein said active hydrogen-containing compound is a polyether polyol, a polyester polyol, an amine-terminated polyether, or a mixture thereof.

Claim 22

A bowling ball as defined in claim 20, wherein said polyether polyol or polyester polyol has a hydroxyl number between about 20 and about 150.

Claim 23

A bowling ball as defined in claim 21, wherein said hydroxyl number is between 28 and 56.

Claim 24

A bowling ball as defined in claim 20, wherein said polyether polyol or polyester polyol has an average hydroxyl functionality from 2 to 4 and an average hydroxyl equivalent weight of 500 to 3000.

Claim 25

A bowling ball as defined in claim 23, wherein said polyether polyol or polyester polyol has an average hydroxyl functionality from 2 to 3 and an average hydroxyl equivalent weight from 1000 to 2000.

Claim 26

A bowling ball as defined in claim 20, wherein said amine-terminated polyether has a molecular weight of 1000-10,000 with a preferred range of 2000 to 7000 and has the general formula; H.sub.2 NCH.sub.2 -CXH(OCH.sub.2 CHX).sub.y NH.sub.2 where X is H or alkyl group having 1-18 carbon atoms and where y is a number of about 20-200.

Claim 27

A bowling ball as defined in claim 20, wherein said amine-terminated polyether is a triamine of poly-alkoxylated trimethylol propane having the general formula: CH.sub.3 CH.sub.2 C[CH.sub.2 (OCH.sub.2 -CHX).sub.z NH.sub.2 ].sub.3 where z is an average of 10-100.

Claim 28

A bowling ball as defined in claim 19, wherein said slip agent compound is a fatty alcohol containing 10-40 carbon atoms which is pre-reacted with said polyisocyanate.

Claim 29

A bowling ball as defined in claim 27, wherein said fatty alcohol contains 15-40 carbon atoms.

Claim 30

A bowling ball as defined in claim 28, wherein said fatty alcohol contains 16-30 carbon atoms.

Claim 31

A bowling ball as defined in claim 27, wherein said fatty alcohol is n-decyl alcohol, n-undecyl alcohol, n-dodecyl alcohol, n-tetradecyl alcohol, n-hexadecyl alcohol, n-octadecyl alcohol, or isostearyl alcohol.

Claim 32

A bowling ball as defined in claim 19, wherein said slip agent is a secondary monoamine of the formula R.sup.1 -NH-R.sup.2 wherein R 1 is an aliphatic hydrocarbon group having from 10-40 carbon atoms and R 2 is an aliphatic hydrocarbon group containing 1-20 carbon atoms, said monoamine being pre-reacted with said polyisocyanate.

Claim 33

A bowling ball as defined in claim 19, wherein said slip agent is dispersed in said polyisocyanate and consists essentially of 0.5-20 mol % of R a R' b SiO.sub.[4-(a+b)]/2 Units and from 99.5-80 mol % of R" c SiO.sub.(4-c)/2 units where R is an isocyanate reactive organic radical, a has an average value of from 1-3, R' and R" are hydrocarbon radical or a substituted organic radical, b has an average value of 0-2, a+b is from 1-3, c has an average value from 1 to 3, and wherein the ratio of the total molecular weight to the total number of isocyanate reactive functional groups in the polysiloxane molecule (equivalent weight) ranges from 100-3500, the combined formula weights of all isocyanate reactive organic radicals, R do not exceed 40% of the total molecular weight of said polysiloxane mold release agent, the combined formula weights of all nonisocyanate reactive radicals, R'+R" together do not exceed 40% of the total molecular weight of said polysiloxane slip agent, the combined formula weights of all the organic radicals R+R'+R" in the molecule together do not exceed 60% of the total molecular weight of the molecule, said polysiloxane slip agent contains an average of at least two isocyanate reactive functional groups per molecule, at least two of the isocyanate reactive functional groups in each molecule are located on separate organic radicals, R, attached independently to different silicon atoms in said polysiloxane, said isocyanate reactive functional groups (R) are selected from the group consisting of alcohols, phenols, thiols, primary or secondary aromatic amines, which contain no oxygen, and not more than one nitrogen, atoms attached directly to, in conjugation with, or incorporated within, the aromatic ring nucleus, and secondary aliphatic amines wherein at least one of the alkyl carbon atoms, bonded directly to the nitrogen atom, is not a primary carbon atom, the molecular weight of said polysiloxane slip agent ranges from 1000 to 30,000, and said polysiloxane slip agent is substantially insoluble in liquid polyisocyanate.

Claim 34

A bowling ball as defined in claim 19, wherein said polyisocyanate comprises an aromatic polyisocyanate.

Claim 35

A bowling ball as defined in claim 33, wherein said polyisocyanate is selected from toluenediisocyanate, diphenylmethane diisocyanate, methylene bridged polyphenylmethane polyisocyanates, and isomers thereof.

Claim 36

A bowling ball as defined in claim 34, wherein said diphenylmethane diisocyanate is modified to contain carbodiimide groups, uretonimine groups, urethane groups, sulfonate groups, isocyanurate groups, urea groups or biuret groups such that it is a liquid at room temperature.

Claim 37

A bowling ball as defined in claim 34, wherein said modified diphenylmethane diisocyanate is blended with methylene bridged polyphenylmethane polyisocyanates.

Claim 38

A bowling ball as defined in claim 19, wherein said polyisocyante is aliphatic.

Claim 39

A bowling ball as defined in claim 37, wherein said aliphatic polyisocyanate is blended with an aromatic polyisocyanate.