BR0303765A - Process for obtaining thermoplastic starch and natural rubber composition and composition thus obtained - Google Patents

Process for obtaining thermoplastic starch and natural rubber composition and composition thus obtained

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Publication number
BR0303765A
BR0303765A BR0303765A BR0303765A BR0303765A BR 0303765 A BR0303765 A BR 0303765A BR 0303765 A BR0303765 A BR 0303765A BR 0303765 A BR0303765 A BR 0303765A BR 0303765 A BR0303765 A BR 0303765A
Authority
BR
Brazil
Prior art keywords
composition
natural rubber
thermoplastic
obtaining
starch
Prior art date
Application number
BR0303765A
Other languages
Portuguese (pt)
Other versions
BR0303765B1 (en
Inventor
Antonio Aprigio Da Sil Curvelo
Antonio Jose Felix De Carvalho
Neri Alves
Aldo Eloizo Job
Original Assignee
Univ Sao Paulo
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Univ Sao Paulo filed Critical Univ Sao Paulo
Priority to BR0303765A priority Critical patent/BR0303765B1/en
Publication of BR0303765A publication Critical patent/BR0303765A/en
Publication of BR0303765B1 publication Critical patent/BR0303765B1/en

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  • Compositions Of Macromolecular Compounds (AREA)
  • Biological Depolymerization Polymers (AREA)

Abstract

"PROCESSO DE OBTENçãO DE COMPOSIçãO DE AMIDO TERMOPLáSTICO E BORRACHA NATURAL E COMPOSIçãO ASSIM OBTIDA". A presente invenção refere-se a um processo de obtenção de compostos termoplásticos biodegradáveis para aplicação em processos para transformação de plásticos, com boas propriedades mecânicas e boa resistência à umidade, e a composição de amido termoplástico ou desestruturado e borracha natural. O processo descrito nesta invenção é caracterizado pelo fato da borracha natural ser adicionada tal qual é extraída, na forma de látex, ao amido e processada por meio de equipamentos utilizados para processamento de polímeros termoplásticos, como extrusoras e etc. O composto obtido pode ser moldado em artigos diversos por meio de processos empregados convencionalmente para termoplásticos, tais como injeção, extrusão, termoformagem, extrusão/injeção seguida de sopro."PROCESS FOR OBTAINING THERMOPLASTIC STARK AND NATURAL RUBBER COMPOSITION AND SO OBTAINED COMPOSITION". The present invention relates to a process for obtaining biodegradable thermoplastic compounds for application in plastic transformation processes having good mechanical properties and good moisture resistance, and the composition of thermoplastic or unstructured starch and natural rubber. The process described in this invention is characterized in that natural rubber is added as it is extracted, in latex form, to starch and processed by equipment used for processing thermoplastic polymers such as extruders and the like. The obtained compound can be molded into miscellaneous articles by conventionally employed thermoplastic processes such as injection, extrusion, thermoforming, extrusion / injection followed by blowing.

BR0303765A 2003-08-29 2003-08-29 Process for obtaining thermoplastic starch and natural rubber composition and composition thus obtained BR0303765B1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
BR0303765A BR0303765B1 (en) 2003-08-29 2003-08-29 Process for obtaining thermoplastic starch and natural rubber composition and composition thus obtained

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
BR0303765A BR0303765B1 (en) 2003-08-29 2003-08-29 Process for obtaining thermoplastic starch and natural rubber composition and composition thus obtained

Publications (2)

Publication Number Publication Date
BR0303765A true BR0303765A (en) 2005-04-12
BR0303765B1 BR0303765B1 (en) 2013-10-22

Family

ID=34398041

Family Applications (1)

Application Number Title Priority Date Filing Date
BR0303765A BR0303765B1 (en) 2003-08-29 2003-08-29 Process for obtaining thermoplastic starch and natural rubber composition and composition thus obtained

Country Status (1)

Country Link
BR (1) BR0303765B1 (en)

Also Published As

Publication number Publication date
BR0303765B1 (en) 2013-10-22

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Legal Events

Date Code Title Description
B25A Requested transfer of rights approved

Owner name: UNIVERSIDADE DE SAO PAULO - USP (BR/SP) , UNIVERSI

Free format text: TRANSFERIDO PARTE DOS DIREITOS DE: UNIVERSIDADE DE SAO PAULO - USP

B07A Application suspended after technical examination (opinion) [chapter 7.1 patent gazette]
B09A Decision: intention to grant [chapter 9.1 patent gazette]
B09Z Decision to grant cancelled [chapter 9.1.1 patent gazette]
B06F Objections, documents and/or translations needed after an examination request according [chapter 6.6 patent gazette]
B09A Decision: intention to grant [chapter 9.1 patent gazette]
B11D Dismissal acc. art. 38, par 2 of ipl - failure to pay fee after grant in time
B11N Dismissal: publication cancelled [chapter 11.14 patent gazette]

Free format text: ANULADA PUBLICACAO REFERENTE RPI/2230 DE 01/10/2013,POR TER SIDO INDEVIDA.

B16A Patent or certificate of addition of invention granted [chapter 16.1 patent gazette]

Free format text: PRAZO DE VALIDADE: 10 (DEZ) ANOS CONTADOS A PARTIR DE 22/10/2013, OBSERVADAS AS CONDICOES LEGAIS.

B21F Lapse acc. art. 78, item iv - on non-payment of the annual fees in time

Free format text: REFERENTE AO NAO RECOLHIMENTO DA 12A ANUIDADE.

B24D Patent annual fee: restoration after fee payment