Active and intelligent additive, polymer and article

Patent metadata

Field	Value
Publication number	US-2017283592-A1
Application number	US-201715625615-A
Country	US
Kind code	A1
Filing date	Jun 16, 2017
Priority date	Sep 13, 2010
Publication date	Oct 5, 2017
Grant date	—

Abstract

The present invention relates to active and intelligent additives having hybrid characteristics, that are compatible with polymers, are thermally and mechanically stable, are capable of releasing electrons and/or photons in the presence of chemical compounds, specifically amino compounds, amide compounds, oxygen reducing compounds, water or vapors thereof. The active and intelligent additives incorporate themselves into polymer matrices allowing the obtainment of active and intelligent polymeric articles. These active and intelligent polymeric articles may act as inhibitors of growth of microorganisms and fungi, as well as indicators of the presence of gasses, either in the atmosphere or caused by the decomposition of foodstuffs, for example.

First claim

1 . An active and intelligent additive incorporated within a non-polar polymer matrix and formed of a sensitive compound encapsulated in an inorganic matrix with hybrid characteristics, said inorganic matrix with hybrid characteristics formed by a silicon alkoxide or a titanium alkoxide, wherein said sensitive compound releases electrons and/or photons as an antimicrobial agent in the presence of a reactive chemical compound by means of a reaction of corrosion of the encapsulated sensitive compound, said reactive chemical compound comprising any compound present in a medium that activates said sensitive compound, wherein said sensitive compound is selected from the group consisting of copper (I), sulfur, ascorbic acid and citric acid, and wherein
said silicon alkoxide is selected from the group consisting of tetraethyl orthosilicate, ethyl triethoxysilane, methyl triethoxysilane, phenyl triethoxysilane, methyl trimethoxysilane, n-octyl ethoxysilane, n-butyl ethoxysilane and vinyl trimethoxysilane, and said titanium alkoxide is selected from the group consisting of tetraethoxy titanium, ethyltriethoxy titanium, methyltriethoxy titanium, phenyltriethoxy titanium, n-octylethoxy titanium and n-butylethoxy titanium, and wherein the polyolefin materials with the additive have antimicrobial activity.

2 . The active and intelligent additive as recited in claim 1 , wherein said reactive chemical compound is selected from the group consisting of amino compounds, amide compounds, oxygen-reducing compounds and/or vapors thereof.

3 . The active and intelligent additive as recited in claim 1 , wherein said non-polar polymer is a polyolefin.

4 . The active and intelligent additive as recited in claim 3 , wherein said polyolefin is a polyethylene.

5 . The active and intelligent additive as recited in claim 3 , wherein said polyolefin is a polypropylene.

6 . An active and intelligent article, comprising the additive as recited in claim 1 .

7 . The active and intelligent additive as recited in claim 1 , wherein said additive acts as an indicator of gas presence.

8 . The active and intelligent additive as recited in claim 1 , wherein said additive acts as a colorimetric indicator.

9 . A non-polar polymer material comprising an active and intelligent additive incorporated within the non-polar polymer material, wherein said active and intelligent additive is formed of a sensitive compound encapsulated in an inorganic matrix with hybrid characteristics, said inorganic matrix with hybrid characteristics formed by a silicon alkoxide or a titanium alkoxide, wherein said sensitive compound releases electrons and/or photons as an antimicrobial agent in the presence of a reactive chemical compound by means of a reaction of corrosion of the encapsulated sensitive compound, said reactive chemical compound comprising any compound present in a medium that activates said sensitive compound, wherein said sensitive compound is selected from the group consisting of copper (I), sulfur, ascorbic acid and citric acid, and wherein
said silicon alkoxide is selected from the group consisting of tetraethyl orthosilicate, ethyl triethoxysilane, methyl triethoxysilane, phenyl triethoxysilane, methyl trimethoxysilane, n-octyl ethoxysilane, n-butyl ethoxysilane and vinyl trimethoxysilane, and said titanium alkoxide is selected from the group consisting of tetraethoxy titanium, ethyltriethoxy titanium, methyltriethoxy titanium, phenyltriethoxy titanium, n-octylethoxy titanium and n-butylethoxy titanium, and wherein the materials with the additive have antimicrobial activity.

10 . The non-polar polymer material as recited in claim 9 , wherein said reactive chemical compound is selected from the group consisting of amino compounds, amide compounds, oxygen-reducing compounds and/or vapors thereof.

11 . The non-polar polymer material as recited in claim 9 , wherein said non-polar polymer is a polyolefin.

12 . The non-polar polymer material as recited in claim 11 , wherein said polyolefin is a polyethylene.

13 . The non-polar polymer material as recited in claim 11 , wherein said polyolefin is a polypropylene.

14 . The non-polar polymer material as recited in claim 9 , wherein said additive acts as an indicator of gas presence.

15 . The non-polar polymer material as recited in claim 9 , wherein said additive acts as a colorimetric indicator.

16 . An active and intelligent article, comprising the non-polar polymer material as recited in claim 9 .

Assignees

• Braskem Sa
• Univ Fed Do Rio Grande Do Sul

Inventors

• Moncada Edwin
• Zimnoch Dos Santos Joao Henrique
• Capeletti Larissa Brentano

Classifications

• C08J5/18

  Manufacture of films or sheets · CPC title

• C08K3/16

  Halogen-containing compounds · CPC title

• C08J2323/10

  Homopolymers or copolymers of propene · CPC title

• C08K5/0058

  Biocides; (macromolecular substances as carriers for biocide material A01N25/10) · CPC title

• C08J2323/04

  Homopolymers or copolymers of ethene · CPC title