J
John Francis Hagman
Researcher at DuPont
Publications - 10
Citations - 336
John Francis Hagman is an academic researcher from DuPont. The author has contributed to research in topics: Ionomer & Elastomer. The author has an hindex of 7, co-authored 10 publications receiving 336 citations.
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Patent
Highly-resilient thermoplastic elastomer compositions
TL;DR: A thermoplastic composition of an acid copolymer, a salt of a high molecular weight, monomeric organic acid; (c) a thermopolymer selected from copolyetheresters, elastomeric polyolefins, styrene diene block copolymers; (d) cation source; and (e) optionally a filler is used in components of one-, two-and three-piece golf balls or multi-layered golf balls made from.
Patent
High-resilience ionomeric compositions for golf ball covers
TL;DR: In this paper, Ionomers derived from ethylene/methacrylic acid copolymers, containing high levels of acid neutralized with lithium, zinc and sodium are blended in defined amounts to form compositions with very high resilience.
Patent
Compositions useful in the manufacture of golfballs
TL;DR: In this paper, the authors provide compositions useful in the manufacture of one-, two-and three-piece golfballs comprising blends of a copolyetherester or copolyetheramide, an expoxy-containing compound, and an acid-containing ethylene copolymer ionomer.
Patent
Soft ionomer compositions and blends thereof and use thereof as golf ball structural materials
TL;DR: In this paper, soft, low modulus ethylene copolymer ionomer compositions containing an acrylate softening monomer, neutralized with magnesium or lithium ions possess a higher level of resilience at a given level of PGA Compressibility than known ionomers.
Patent
Highly-resilient thermoplastic compositions
TL;DR: In this article, a thermoplastic composition is provided, comprising an acid copolymer, a salt of a high molecular weight, monomeric organic acid; (c) a thermplastic resin; (d) a cation source; and (e) optionally, a filler.