Total Research & Technology Feluy

Futerro S.a.

Fina Research, S.a.

Total Petrochemicals Research Feluy

Atofina Research S.a.

Atofina Research

Thierry Christian Coupin

Bernard Haveaux

Eric Maziers

Jean-Philippe Hallet

Frans Maurice Defoor

Jean Philippe Hallet

A composition may contain a first polymer, a second polymer, and a block copolymer. The first polymer may be polylactic acid, starch, polybutylene succinate, poly(butylene adipate-co-terephthalate), or a mixture thereof. The second polymer may be polybutadiene, high impact polystyrene, or a mixture thereof. The block copolymer may be a block copolymer of polylactic acid and polybutadiene. The composition may be prepared by a process that includes contacting the first polymer with the second polymer and the block copolymer. Articles may be prepared from the composition.

Polymer composition

Embodiments of poly-lactide compositions are disclosed herein. The compositions may comprise at least one first polymer selected from polylactide-polybutadiene (PLA-PB) block copolymer, polylactide-urethane-polybutadiene block copolymer, or a mixture thereof; and at least one second polymer selected from polylactide, polylactide-urethane, or a mixture thereof. The composition may also comprise from 20% to 50% by weight of said first polymer based on the total weight of the composition and from 50% to 80% by weight of said second polymer based on the total weight of the composition. Embodiments of the present invention also relate to a process for preparing the poly-lactide compositions and articles comprising the poly-lactide compositions.

Polylactide based compositions

A composition includes a polymer having a poly-lactide and at least one compound of formula (I), where Lis Calkylene or Ccycloalkylene; Lis Calkylene; Lis Calkylene; Lis Calkylene; Lis Calkylene; n is an integer selected from 1, 2, 3 or 4; m is an integer selected from 1, 2, 3 or 4; Ris H; or Calkyl; Ris H; or Calkyl. The poly-lactide is poly-L-lactide comprising a content of D isomer of at least 10% by weight based on the total weight of the poly-L-lactide; poly-D-lactide comprising a content of L isomer of at least 10% by weight based on the total weight of the poly-D-lactide; poly-DL-lactide; poly(meso-lactide); or mixtures thereof.

Composition comprising poly-lactide-based polymer

The present invention relates to a composition comprising: The present invention also relates to a process for preparing said composition. The present invention also relates to an article comprising said composition.

Polymer composition comprising poly-lactide-polybutadiene based block copolymer

Embodiments of polylactide based compositions are disclosed herein. The compositions may comprise at least one first polymer selected from polylactide-polybutadiene (PLA-PB) block copolymer, polylactide-urethane-polybutadiene block copolymer, or a mixture thereof; and at least one second polymer selected from polylactide, polylactide-urethane, or a mixture thereof. The composition may also comprise from 20% to 50% by weight of said first polymer based on the total weight of the composition and from 50% to 80% by weight of said second polymer based on the total weight of the composition. Embodiments of the present invention also relate to a process for preparing the polylactide based compositions and articles comprising the polylactide compositions.

The present invention relates to a method for manufacturing polylactide-based articles by rotational molding and also to the articles obtained by the method.

Manufacture of polylactide-based articles by rotational molding

The present invention relates to a polymer composition comprising polylactide and, based on the weight of this polymer, from 17 to 25 wt % of a chain modifier, from 30 to 55 wt % of an elastomeric polymer and from 20 to 45 wt % of a plasticizer. The invention also relates to the method of preparing said composition as well as to the method of manufacturing an article starting from said composition and the article per se.

Composition of polymers derived from renewable resources

A process is described for obtaining a chemical blend of a polyolefin with a poly(hydroxy carboxylic acid) by mixing poly(hydroxy carboxylic acid) with at least one polyolefin in the presence of a compatibilising compound having at least one polymerisable double bond and at least one electrophilic functional group. The invention also relates to the chemical blend obtainable according to this process, as well as the use of the compatibilising compound to obtain chemical blends of polyolefin with poly(hydroxy carboxylic acid).

Chemical blends of polyolefins and poly(hydroxy carboxylic acid)s

The invention relates to a novel transparent block copolymer and its process for the manufacture. The process comprises a first partial killing of at least the living copolymeric species R-S-B-M with a multi-functional deactivation agent where Sis a monovinyl-substituted aromatic homopolymer, B, is a conjugated diene homopolymer, M is an alkali metal and R is an alkyl (RM being an initiator) and further comprises a second total deactivation of at least the living tapered block copolymeric species R-S-B-B/S-M (obtained by adding a feed B/Sto the reaction medium) by a mono-functional deactivation agent (the terminating agent).

Transparent block copolymers and production thereof

Uses of syndiotactic/atactic block polypropylene are provided in which the molecular weight thereof is preferably at least 120kD. The syndiotactic/atactic block polypropylene may be used as a polypropylene modifier, a component in an adhesive composition, a shock absorber component, a waterproof membrane component, a packaging film or component thereof, a shapable composition component, and an acoustic absorbent material component, a composition for moulding into a footwear component, a bitumen modifier, a compatibiliser, an emulgator or an emulsifier, as a viscosity improver, and as a spilled oil absorber.

Polyolefins and uses thereof

Uses of syndiotactic/atactic block polypropylene are provided in which the molecular weight thereof is preferably at least 120 kD. The syndiotactic/atactic block polypropylene may be used as a polypropylene modifier, a component in an adhesive composition, a shock absorber component, a waterproof membrane component, a packaging film or component thereof, a shapable composition component, and an acoustic absorbent material component, a composition for moulding into a footwear component, a bitumen modifier, a compatibiliser, an emulgator or an emulsifier, as a viscosity improver, and as a spilled oil absorber.

An elastomer is blended with bitumen, an alkaline compound is then added which is soluble in the bitumen, and to this mixture is added 0.01 to 0.1% by weight of a mixture of vulcanizing agents comprising elemental sulphur and a sulphur-containing derivative of the form: ##STR1## where R.sub.1 and R.sub.2 are C.sub.1 to C.sub.4 alkyl radicals or, together R.sub.1 and R.sub.2 have the formula ##STR2## and where M, which is optional, is Zn, Ba or Cu.

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Carnieres, Belgium

Thierry Christian Coupin