Unlock instant, AI-driven research and patent intelligence for your innovation.

Biodegradable sheet

A biodegradable sheet technology, applied in the field of nanoclay and/or PVOH as a gas barrier, sheet composition, can solve the problems of not being able to provide liquid packaging devices, defective, not designed to provide, etc.

Inactive Publication Date: 2015-02-18
TIPA CORP
View PDF6 Cites 6 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, these articles are not optimally designed to allow easy portability by the user while being physically active
In addition, these products are not designed to provide different liquid volumes that can be consumed even if needed
[0010] All of the above prior art configurations are deficient in failing to provide a simple, efficient and practical liquid packaging device which enables the user to easily achieve flexible compartmental packaging of liquids

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • Biodegradable sheet
  • Biodegradable sheet
  • Biodegradable sheet

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0150] single layer biodegradable sheet

[0151] All single layer sheets referred to herein have a thickness of 50 microns.

[0152] Sheet #1: A single layer biodegradable sheet containing 33.3% w / w PLA, 33.3% w / w PBS and 33.3% w / w Ecoflex was prepared as follows:

[0153] A. Melt extrusion mixing stage:

[0154] 1.166.7gr PLA, 166.7gr PBS and 166.7gr Ecoflex were dried overnight at 50°C under vacuum;

[0155] 2. The dried polymer is dry blended and placed in a twin-screw PRISM mixer;

[0156] 3. The polymer is melt extruded in a PRISM mixer set to:

[0157] i) Temperature conditions: 170°C-175°C-180°C-185°C-190°C (the mold is set to 190°C);

[0158] ii) Screw speed: 250rpm; and

[0159] iii) Pressure: 15 bar to 25 bar.

[0160] B. Casting extrusion stage:

[0161] 1. The molten extruded material is dried overnight under vacuum at a temperature of 50°C;

[0162] 2. The material is placed into the Randcastle extruder set to:

[0163] i) 170°C-180°C-190°C-180°C-adapter;...

Embodiment 2

[0173] Three-layer biodegradable sheet

[0174] All three-layer sheets referred to herein have a thickness of 100 microns.

[0175] Sheet #6: A three-layer biodegradable sheet was prepared according to the procedure described above for Sheet #1, wherein the weight of each layer constituted one third of the weight of the final sheet. Tri-ply sheet #6 consists of the following 3 layers:

[0176] Layer 1: 33.3% w / w PLA, 33.3% w / w PBS and 33.3% w / w Ecoflex

[0177] Layer 2: 100% w / w PHA

[0178] Layer 3: 33.3% w / w PLA, 33.3% w / w PBS and 33.3% w / w Ecoflex

[0179] The physical properties measured for sheet #6 were as follows: Stress at maximum load of 20 MPa, elongation at break of 558%, Young's modulus of 675 MPa.

[0180] Sheet #7: A three-layer biodegradable sheet was prepared according to the procedure described above for Sheet #1, wherein the weight of each layer constituted one third of the weight of the final sheet. Tri-ply sheet #7 consists of the following 3 layers: ...

Embodiment 3

[0198] Physical, mechanical, thermal and barrier properties of single-layer biodegradable sheet, three-layer biodegradable sheet and five-layer biodegradable sheet

[0199] Sheet #10: A monolayer biodegradable sheet containing 25% w / w PLA and 75% w / w PBSA was prepared using the same procedure described above for Sheet #1, wherein the polymeric The amount of material was 125gr PLA and 375gr PBS. The measured physical, mechanical, thermal and barrier properties of Sheet #10 are as follows:

[0200] physical properties

[0201] Specific gravity 1.25 ASTM D792

[0202] Melt volume rate (190℃ / 2.16kg) [cm 3 / 10 minutes] 3.9 ASTM D1238

[0203] Melt flow rate (190℃ / 2.16kg) [g / 10min] 4.2 ASTM D1238

[0204] Mechanical behavior

[0205]

[0206] thermal performance

[0207] Heat distortion temperature HDT[℃ / 18.5kg / cm 2 ] 45 ASTM D648

[0208] Barrier properties

[0209] OTR (Oxygen Transmission Rate from Bottle) 0.3cc / package / day

[0210] Sheet #11: A three-layer ...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

PUM

PropertyMeasurementUnit
thicknessaaaaaaaaaa
thicknessaaaaaaaaaa
thicknessaaaaaaaaaa
Login to View More

Abstract

Disclosed is a biodegradable sheet prepared from biodegradable material comprising a gas barrier material, wherein the gas barrier material may be a nanoclay and / or polyvinyl alcohol.

Description

technical field [0001] The present invention is directed to a composition for a biodegradable sheet comprising a gas barrier material. The present invention relates to the use of nanoclays and / or PVOH (polyvinyl alcohol) as gas barriers. Background technique [0002] The utilization of biodegradable materials has grown over the past few years due to their environmental performance. The uses for this material are numerous and include various types of plastic bags, diapers, balloons, and even sunshades. In response to the need for more environmentally friendly packaging materials, many new biopolymers have been developed which have exhibited biodegradation when discarded into the environment. Some of the larger players in the biodegradable plastics market include reputed chemical companies such as DuPont, BASF, Cargill-Dow Polymers, Union Carbide, Bayer, Monsanto, Mitsui, and Eastman Chemical. These companies have developed one or more types or one or more biopolymers. For...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

Application Information

Patent Timeline
no application Login to View More
Patent Type & Authority Applications(China)
IPC IPC(8): B32B27/18B32B27/08B32B27/36B32B7/10C08L101/16C08K3/34C08J5/18B65D65/46B65D75/58B82Y30/00C08J7/043C08J7/048
CPCB32B2250/40B32B27/08B65D65/466B32B27/306B65D75/5877B32B2250/03B32B27/36B32B2307/7163B32B27/18C08K2201/018B32B2270/00C08J5/18Y10T428/1379B65D75/5883B32B2264/107B32B2439/02B65D75/566C08K3/346B65D75/5822B82Y30/00C08L101/16B32B27/32B65D75/42C08J7/042C08J2300/16C08J2429/04C08L29/04B32B2250/24B32B2264/10B32B2439/66C08K2201/008Y10T428/31797Y02W90/10C08J7/048C08J7/043
Inventor 塔尔·纽曼达夫纳·尼森鲍姆阿纳·里·多坦沙伊·伽尔蒂
Owner TIPA CORP