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 obtainedInfo
- 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
Links
Landscapes
- 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.
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) |
-
2003
- 2003-08-29 BR BR0303765A patent/BR0303765B1/en not_active IP Right Cessation
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. |
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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 |