公开(公告)号：US20180371200A1

公开(公告)日：2018-12-27

申请号：US16061825

申请日：2015-12-16

Applicant: RHODIA POLIAMIDA E ESPECIALIDADES S.A.

Inventor： Eder TORRES ,  Aires IACOVONE

IPC: C08J9/28 ,  B01D61/14 ,  C08G12/32 ,  C08G85/00 ,  C08L61/28

Abstract: The present invention generally relates to a process for reducing formaldehyde content from cationic melamine-formaldehyde resin solution. Said process comprises the steps consisting of charging a starting solution to an ultrafiltration membrane system, separating said starting solution into a concentrate solution which mainly comprises cationic melamine-formaldehyde resin of high molecular weight, formaldehyde and water, and a permeate solution which mainly comprises cationic melamine-formaldehyde resin molecules of low molecular weight, formaldehyde, acid compounds and water and treating the permeate solution to reduce the free formaldehyde content of the permeate.

公开(公告)号：US10669509B2

公开(公告)日：2020-06-02

申请号：US15545167

申请日：2016-01-25

Applicant: RHODIA POLIAMIDA E ESPECIALIDADES S.A. ,  RHODIA OPERATIONS

Inventor： Ronaldo Nascimento ,  Darlene Felix ,  Tingting Zhang

IPC: A61K8/18 ,  A61Q13/00 ,  A61K8/00 ,  C11B9/00 ,  A61L9/03 ,  A61L9/04 ,  A61L9/12

Abstract: The present invention aims a new fragrance composition comprising a fragrance compound and a solvent or carrier, wherein at least 10% by weight based on the total weight of solvent and carrier of the fragrance composition is one or more specific low vapor pressure volatile organic compound (VOC). The new fragrance composition is particularly well adapted to air care devices like wicking or electrical systems (plug-in, reed diffusers . . . ).

公开(公告)号：US20180195016A1

公开(公告)日：2018-07-12

申请号：US15742129

申请日：2016-07-05

Applicant: RHODIA POLIAMIDA E ESPECIALIDADES S.A.

Inventor： Sébastien NICOLAS ,  Fernanda GRIGOLETTO ,  MARTINS Sergio

IPC: C10L1/185 ,  C10L1/19 ,  C10L10/10

CPC classification number: C10L1/1855 ,  C10L1/18 ,  C10L1/19 ,  C10L10/10 ,  C10L2200/0438 ,  C10L2270/023

Abstract: The present invention aims a new gasoline composition comprising a gasoline fuel and from 0.05 to 1% of a specific low quantity of a glycerol ketal or acetal. The new gasoline composition shows a higher octane number compared to known gasoline compositions. The invention also aims at the use of said glycerol ketal or acetal as a metal free octane booster additive for octane adjustment of gasoline compositions.

公开(公告)号：US20180258356A1

公开(公告)日：2018-09-13

申请号：US15742124

申请日：2016-07-05

Applicant: RHODIA POLIAMIDA E ESPECIALIDADES S.A.

Inventor： Sébastien NICOLAS ,  Fernanda GRIGOLETTO ,  Martins SERGIO

IPC: C10L1/185 ,  C10L1/19 ,  C10L10/12 ,  C10L10/08

CPC classification number: C10L1/1855 ,  C10L1/18 ,  C10L1/19 ,  C10L10/08 ,  C10L10/12 ,  C10L2200/0476 ,  C10L2270/026

Abstract: The present invention aims a new diesel composition comprising a diesel fuel and from 0.01 to 0.8% by volume of a glycerol acetal or ketal. The new diesel composition shows a higher cetane number and better lubricity performances compared to known diesel compositions.

公开(公告)号：US10344143B2

公开(公告)日：2019-07-09

申请号：US15532629

申请日：2015-10-01

Applicant: RHODIA POLIAMIDA E ESPECIALIDADES S.A.

Inventor： Renata Redondo Bonaldi ,  Gabriel Gorescu ,  Thomas Gonzaga Canova ,  Everton Ferreira Dos Santos

IPC: C08K5/42 ,  C08G69/28 ,  D01F1/10 ,  D01F6/60 ,  C08G69/16 ,  C08L77/02 ,  C08L77/06

Abstract: The present invention relates to a method for providing resistance to phenolic yellowing, during storage, transportation and processing of polyamide articles, caused by the presence of phenolic compounds in plastic package materials. The phenolic yellowing resistance is obtained by adding a sulfonated reagent during polymerization of the polyamide and/or during the formation of the polyamide article, like melt-spinning extrusion, and/or during the conversion of the polyamide article by texturizing.

公开(公告)号：US20180148862A1

公开(公告)日：2018-05-31

申请号：US15577462

申请日：2015-06-18

Applicant: RHODIA POLIAMIDA E ESPECIALIDADES S.A.

Inventor： Renata REDONDO BONALDI ,  Gabriel GORESCU ,  Everton FERREIRA DOS SANTOS ,  Paulo CANDIDO OLIVEIRA

IPC: D01F6/90 ,  D06P3/24

CPC classification number: D01F6/90 ,  D06P3/241

Abstract: The present invention relates to a polyamide fiber with enhanced dyeing properties. The polyamide fiber is suitable for low-temperature dyeing and shorter dyeing cycle. The present invention also discloses a method for obtaining such a fiber. The polyamide fiber is obtained by blending at least a polyamide 5.X, X being an integer from 4 to 16 with an aliphatic polyamide during the melt-spinning extrusion of the polyamide fiber. The blended polyamide fiber and articles made therefrom can be dyed at a lower temperature than the usual boiling temperature, and the dyeing time is half of the time of a normal dyeing cycle. The dyed polyamide fiber and article also show enhanced fastness to washing and perspiration.

公开(公告)号：US20230183440A1

公开(公告)日：2023-06-15

申请号：US17926497

申请日：2020-05-29

Applicant: Solvay SA ,  RHODIA POLIAMIDA E ESPECIALIDADES S.A.

Inventor： Victor Ferrao ,  Stephane Streiff ,  Priscila Maziero ,  Fan Jiang ,  Tao Lin

IPC: C08J11/10 ,  C08J11/08 ,  C08G59/24 ,  C08G59/50 ,  C12N9/10

CPC classification number: C08J11/105 ,  C08J11/08 ,  C08G59/245 ,  C08G59/5073 ,  C12N9/1088 ,  C08J2363/00

Abstract: Provided is a method for degrading epoxy resins by enzymatic route, in particular by adding an epoxy resin in a solvent followed by treatment with a glutathione S-transferase. A method for recycling a composite material comprising epoxy resin as well as the use of glutathione 5-transferase and eventually para-hydroxybenzoate hydroxylase for degrading epoxy resins are also provided.

公开(公告)号：US11072753B2

公开(公告)日：2021-07-27

申请号：US15742124

申请日：2016-07-05

Applicant: RHODIA POLIAMIDA E ESPECIALIDADES S.A.

Inventor： Sébastien Nicolas ,  Fernanda Grigoletto ,  Sergio Martins

IPC: C10L1/185 ,  C10L1/19 ,  C10L10/08 ,  C10L10/12 ,  C10L1/18

Abstract: The present invention aims a new diesel composition comprising a diesel fuel and from 0.01 to 0.8% by volume of a glycerol acetal or ketal. The new diesel composition shows a higher cetane number and better lubricity performances compared to known diesel compositions.

公开(公告)号：US20200299867A1

公开(公告)日：2020-09-24

申请号：US16089048

申请日：2016-04-04

Applicant: RHODIA POLIAMIDA E ESPECIALIDADES S.A.

Inventor： Renata REDONDO BONALDI ,  Gabriel GORESCU ,  Pierre HANSU PAK ,  Richard MACRET

IPC: D01F6/60 ,  D01D5/08 ,  D01F1/10 ,  C08G69/48

Abstract: The present invention relates to a biodegradable polyamide fiber. The present invention also discloses a method for obtaining such fiber and articles made therefrom. The biodegradable polyamide fiber of the invention can be obtained by adding a biodegradation agent during the melt-spinning extrusion of a specific polyamide described below.

公开(公告)号：US10655087B2

公开(公告)日：2020-05-19

申请号：US16069960

申请日：2016-01-14

Applicant: RHODIA POLIAMIDA E ESPECIALIDADES S.A.

Inventor： Fernanda Grigoletto ,  Sergio Martins ,  José Roberto Mariussi ,  Suelbi Silva

IPC: C09D7/00 ,  C09D7/20 ,  C11D3/20 ,  C09D9/00 ,  C11D11/00

Abstract: The present invention relates to a polish remover formulation. The present invention more specifically focuses on the use of a blend of glycerol ketals and/or acetals in polish remover formulations, notably for promoting the polish removing performances.