Pure polyurea and method for making same

A pure polyurea comprising:

• an A-component prepolymer for said pure polyurea comprising:
• at least one polyisocyanate;
• at least one secondary polyether amine;
• a B-component prepolymer for said pure polyurea comprising:
• at least one aromatic diamine;
• and
• at least one polyether amine.

A pure polyurea comprising:

• an A-component prepolymer comprising:
• a mixture of 4,4-methylenediphenylisocyanate and 2,4-methylenediphenylisocyanate;
• at least one secondary polyether amine;
• and
• a B-component prepoymer comprising:
• an aromatic diamine.

A golf ball comprising:

• an inner core;
• and
• an outer cover formed from a reaction casted layer composition comprising:
• a B-component prepolymer comprising:
• at least one secondary polyether amine;
• and
• a caprolactone monomer, and
• an A-component prepolymer which comprises at least one polyisocyanate.

A golf ball comprising:

• an inner core;
• and
• an outer cover formed from a reaction casted layer pure polyurea composition comprising:
• an A-component prepolymer for said pure polyurea comprising:
• at least one polyisocyanate;
• at least one secondary polyether amine;
• and
• a B-component prepolymer for said pure polyurea comprising:
• at least one aromatic diamine.

A method for forming a layer of pure polyurea comprising;

• mixing a B-component in a first container, said B-component comprising:
• an aromatic diamine;
• a polyether amine;
• mixing an A-component in a second container, said A-component comprising:
• at least one isocyanate selected from the group consisting of 4,4-methylenediphenylisocyanate and 2,4-methylenediphenylisocyanate;
• a secondary polyether amine;
• delivering said A-component and said B-component to a spray gun;
• spraying said A-component and said B-component out of said spray gun such that they react to form said layer of pure polyurea.

A method for making a golf ball comprising:

• forming an inner core;
• producing an outer cover material comprising:
• mixing a B-component in a first container, said B-component comprising:
• an aromatic diamine;
• mixing an A-component in a second container, said A-component comprising:
• at least one isocyanate selected from the group consisting of 4,4-methylenediphenylisocyanate and 2,4-methylenediphenylisocyanate;
• a secondary polyether amine;
• mixing said A-component and said B-component together to produce an outer cover material;
• and
• forming an outer cover around said inner core from said outer cover material.