Bridgestone Corporation

Bridgestone Americas Tire Operations, LLC

Ludovica Caliano

Raffaele Di Ronza

Claudia Aurisicchio

Amy M Randall

Benjamin C Galizio

Salvatore Cotugno

Giancarlo Cossu

Claudia Crestini

Giuseppe Pezzullo

John Nazareno House

Giovanna Mancini

Alessandro Mauceri

Luisa Giansanti

Francesco Madau

Maria Cecilia Palumbi, I

Francesco De Luca

A rubber compound for making a pneumatic tyre structural component comprising a cross-linkable unsaturated-chain polymer base, a reinforcing filler, a thermosetting resin and a vulcanization system. The thermosetting resin comprises functionalized lignin with &#x2014;OR groups wherein R is an alkyne group with a number of carbon atoms of between (3) and (18).

High rigidity compound for pneumatic tyres comprising functionalized lignin

Disclosed herein are a sealant composition for use with tires, a tire having at least one component with at least one surface at least partially coated with the sealant composition, and related methods for applying the sealant composition to tires. The sealant composition comprises biorubber and a softener comprising at least one of plant oil or plant resin and has a non-petroleum content of at least 70% by weight.

Tire sealant composition

A rubber compound for the preparation of pneumatic tyre parts comprising at least a crosslinkable unsaturated-chain polymer base, a filler, a vulcanization system and a dispersing agent comprising, in turn, a functionalized lignin having a plurality of functionalizations of the general formula I 

Rubber compounds for pneumatic tyre parts comprising lignin as dispersing agent

Rubber compound for preparing pneumatic tyre parts comprising a cross-linkable unsaturated chain polymer base, a filler, a vulcanization system and one or more antioxidant agents. The antioxidant agents comprise functionalized lignin with &#x2014;OR groups, where R is a terpene group with a total number of carbon atoms of between 6 and 16. The &#x2014;OR groups deriving from the functionalization of 10 to 60% of the lignin phenolic hydroxyl groups.

Rubber compounds for pneumatic tyre parts comprising lignin as an antioxidant agent

A rubber compound comprising a polymer base with a cross-linkable unsaturated chain, a filler and a vulcanization system. The vulcanization system comprises at least sulphur, one or more vulcanization accelerators, and one or more vulcanization activators. The vulcanization system comprises, as a vulcanization activator, a zinc salt of a monocarboxylic acid with general formula (I)HOC(CH)CO(CH)CH&#x2003;&#x2003;(I)wherein:

Rubber compound to produce tyres

A rubber mixture comprising at least one polymer base with a cross-linkable unsaturated chain, a vulcanization system, and antioxidant agents comprising in monomer form one or more compounds covered by the general formula (I) 

Class of antioxidant agents for polymer products

Use, as an anti-aging agent in polymer compounds, stilbene family compound of general formula (I): wherein the substitutes are selected from the following five combinations: a) R, Rand Rare OH; R, Rand Rare H; b) Rand Rare OCH; Rand Rare OH; Rand Rare H; c) Rand Rare OH; Rand Rare OC(CH); Rand Rare H; d) Rand Rare OCH; Rand Rare OH; Rand Rare C(CH); e) Rand Rare OC(CH); Rand Rare OH; Rand Rare H. 

Class of rubber product anti-aging agents

A compound for a tyre textile body ply skim. The compound has a cross-linkable, unsaturated-chain polymer base, a reinforcing filler composite, and a curing system having at least a curing agent and accelerants. The compound has 0.1 to 20 phr of a lignin derivative, 20 to 50 phr of a first carbon black with a surface area of 90 to 150 m/g, and 5 to 20 phr of a second carbon black with a surface area of 10 to 40 m/g.

Growing community of inventors

Rome, Italy

Ludovica Caliano