CAST ELASTOMERS WITH TUNABLE MATERIAL PROPERTY DEVELOPMENT

    公开(公告)号:US20250065540A1

    公开(公告)日:2025-02-27

    申请号:US18454379

    申请日:2023-08-23

    Abstract: A method for manipulating a cure profile of an elastomer is disclosed. The method may include providing a formulation comprising an isocyanate prepolymer, a curative, a first catalyst, and a second catalyst. The method may further include curing the formulation by initiating a front-end cure reaction between the isocyanate prepolymer and the curative with the first catalyst. The method may further include decreasing a rate of a back-end cure reaction between the isocyanate prepolymer and the curative using the second catalyst, wherein the second catalyst does not impact the front-end cure reaction.

    MULTI-LAYER GOLF BALLS WITH INCREASED INTERLAYER ADHESION

    公开(公告)号:US20240278086A1

    公开(公告)日:2024-08-22

    申请号:US18108322

    申请日:2023-02-10

    CPC classification number: A63B45/00 A63B37/0023 A63B37/0038 B29L2031/546

    Abstract: Casing compositions including carboxylic acid groups, cover compositions including an adhesion promoter with functional groups that crosslink with carboxylic acid groups, and golf balls made from such compositions that have crosslinks between functional groups of the cover compositions and the carboxylic acid groups. The type and concentration of the components in the casing and cover compositions, including the adhesion promoter, affect the adhesion between golf balls having components made from such compositions and, thus, can be used to produce a golf ball having increased durability. Additionally, methods of crosslinking casing and cover layers made from such casing and cover compositions to increase interlayer adhesion are disclosed.

    METHODS FOR FORMING HEAT-RESISTANT POLYURETHANE COVERS FOR GOLF BALLS

    公开(公告)号:US20220193965A1

    公开(公告)日:2022-06-23

    申请号:US17540300

    申请日:2021-12-02

    Abstract: The present invention provides methods for producing golf balls having polyurethane covers and the resultant balls. Multi-piece golf balls having an inner core and outer cover with one or more intermediate layers disposed between the core and cover can be formed. The methods involve producing hydroxyl-terminated adducts and isocyanate-terminated prepolymers. Thermoset and thermoplastic polyurethane compositions can be prepared. The resulting polyurethane compositions and golf ball covers have high thermal stability and good wear-resistance and durability.

    METHOD OF MAKING GOLF BALL AND RESULTING GOLF BALL

    公开(公告)号:US20210317332A1

    公开(公告)日:2021-10-14

    申请号:US17203148

    申请日:2021-03-16

    Abstract: Method of making golf ball comprising providing subassembly and forming at least one layer thereabout comprised of a thermoset polyurethane created using prepolymer prepared by: reacting stoichiometric excess of first isocyanate with at least one long chain polyol and/or polyamine soft segment to create first isocyanate-terminated first prepolymer with (% NCO)FIRST PREPOLYMER; and adding stoichiometric excess of additional isocyanate to the first isocyanate-terminated first prepolymer to produce modified-first prepolymer with (% NCO)MODIFIED-FIRST PREPOLYMER; wherein (% NCO)MODIFIED-FIRST PREPOLYMER>(% NCO)FIRST PREPOLYMER. Reacting a stoichiometric excess of isocyanate in multiple steps and staggering addition of total amount of free, reactive, and unreacted isocyanate functional groups into the isocyanate-functional final prepolymer produces an improved final prepolymer as well as a resulting thermoset polyurethane with better physical properties compared with conventional thermoset polyurethanes based on conventional prepolymers wherein the total % NCO is added in a single step or not at all until well into the prepolymer formation process.

    Methods and compositions for cross-linking thermoplastic polyurethane covers for golf balls

    公开(公告)号:US10967225B2

    公开(公告)日:2021-04-06

    申请号:US15931668

    申请日:2020-05-14

    Abstract: Golf balls having covers made of thermoplastic polyurethane compositions are provided. Multi-piece golf balls can be made. In one embodiment, the outer cover layer is formed from a composition comprising a thermoplastic polyurethane and acid copolymer ionomer. The cover composition also can contain hydroxyl-containing compounds. The golf ball having the thermoplastic polyurethane cover can be treated with an isocyanate compound. The golf ball also can be treated with an amine and/or silane-containing compound. The cover composition and surface coatings can further include catalysts, ultraviolet (UV)-light stabilizers, and other additives. The coating methods have many benefits and the finished balls have good physical properties.

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