Inventor

MALDONADO PAUL

34 patents

⚠️ This page may combine multiple inventors who share the name “MALDONADO PAUL”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.

MALDONADO PAUL

ELF FRANCE

Process for preparing bitumen-polymer compositions, application of these compositions of the obtention of coverings and mother solution of polymer usable for the obtention of the said compositions

Process for preparation of compositions of bitumen polymers and products

Cationic emulsions of bituminous binders of the bitumen type and their process of preparation

Process for preparing bitumen-polymer compositions, application to these compositions of the obtention of coverings and mother solution of polymer usable for the obtention of the said compositions

Ethers of polyols, their preparation and use

Method for preparing very fluid overbased additives having a high basicity and composition containing the additives

Friction-reducing lubricating compositions each comprising an additive

Novel filter aid compositions for improving the limiting filterability temperature and inhibition of n-paraffin crystal formation during low temperature of middle distillates

Process for preparing an additive for lubricating oils, the additive thus obtained and a lubricating composition containing the additive

INST FRANCAIS DU PETROLE

Hydrocarbon middle distillates composition containing nitrogen-containing additives for decreasing its cloud point

N-Substituted succinimides, their preparation and use as motor fuel additives

Detergent compositions, their manufacture and their use as additives for fuels

Heavy fuel-oil compositions having an improved stability under storage conditions

Process for producing citric acid by fermentation

Yeasts

Method of preparing yeasts enriched in l-lysine and capable of excreting organic acids

Fermentation process for the production of citric and isocitric acids

Chemical process

ELF ANTAR FRANCE

Additive for fuel oiliness

Fuel composition for diesel engines containing oxygenated compounds

Fuel with low sulphur content for diesel engines

Fuel with low sulphur content for diesel engines

Process for the preparation of functionalized elastomer/bitumen compositions and their use in coatings

ELF UNION

Process for the preparation of bituminous compositions making use of a mother solution containing polymers and sulfur

Method of preparing novel bitumen compositions

Process for preparing bitumen-polymer compositions

Process for improving the properties of bituminous products and an improved cast asphalt

Method for the preparation of bitumens modified by polymers

ELF AQUITAINE

Novel n-substituted polyamide type polymers, their method of preparation and their use as additives for crude petroleum oils

Process for inhibiting the deposit of paraffins in crude oils and petroleum sections utilizing N-substituted succinimide ethers

Plant fertilizing and growth activating structures and applications thereof

SANOFI SA

Method for the extraction of periplasmic proteins from prokaryotic microorganisms in the presence of arginine

Method for the extraction of periplasmic proteins from prokaryotic microorganisms in the presence of arginine

ELF AQUITAINE & CECA S A SOC N

Polymeric additives useful for inhibition of the deposit of paraffins in crude oils