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Patent

Process for breaking petroleum emulsions

TLDR
In this article, a novel process for resolving petroleum emulsions of the water-in-oil type, commonly referred to as "cut oil", "roily oil," "emulsified oil," etc., was proposed.
Abstract
This invention relates primarily to the resolution of petroleum emulsions. One object of our invention is to provide a novel process for resolving petroleum emulsions of the water-in-oil type, that are commonly referred to as "cut oil," "roily oil," "emulsified oil," etc., and which comprise...

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Oral care implement

TL;DR: In this paper, an oral care implement is provided having a handle and a head with tooth cleaning elements extending from fixed pods via a bridge, and the bridge may be formed from an elastomer and permit the one or more central pods to move from an initial position toward the head during use.
PatentDOI

Polyamides from polymeric fat acids

TL;DR: The preparation and properties of various polyamides, copolyamides and modified polyamide, of polymeric fat acids have been described in this article, and a brief discussion has been given concerning the application of theoretical principles of polymerization to the preparation of these polymers.
Patent

Unsaturated carboxylic salt materials and derivatives thereof

Fred Smeets
TL;DR: In this paper, the authors defined polycarboxylic acids having more than three carboxyric acid groups and alkali and alkaline earth metal metal salts thereof prepared by the pyrolysis of alkali earth metal salts of citric acid as intermediates for sulfoacid materials used in preparing surface active agents.
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Patent

Amides of high molecular weight carboxylic acids

TL;DR: In this article, an object of this invention is to prepare amides of carboxylic acids which are polymers of polyene fatty acids, but more particularly to polyamides or mixed polyamide-polyester resins.
Patent

Composition of matter and process for preventing water-in-oil type emulsions resulting from acidization of calcareous oil-bearing strata

TL;DR: In this paper, the authors introduce a strong mineral acid into an oil well for the purpose of causing the acid to disintegrate, dissolve, or react with the calcareous strata.
Patent

Processes for breaking petroleum emulsions

TL;DR: In this paper, the treatment of emulsions of mineral oil and water, such as petroleum emulsion, for the purpose of separating the oil from the water is described, where the emulsion is of the water-in-oil type and comprises fine droplets of naturallyoccurring waters or brines, dispersed in