PNVA ™ GE191

The inquiry form is here.

Inquiry of this product
Functional Chemicals Division, Specialty Chemicals Department , Presonal Care Group

PNVA GE191

Outline of PNVA™ GE191
PNVA™ GE191 is a homopolymer of N-Vinylacetamide (NVA monomer™). Because it has a straight chain structure, larger molecules have stringiness.

Structure of PNVA™ GE191

Characteristics of GE191
PNVA™ GE191 has the following features:

  • 1. Stable thickening property in a wide range of pH
  • 2. Able to thicken polar organic solvents
  • 3. Able to thicken high salt concentration solutions
  • 4. Resistant to acids and alkalis
  • 5. Water soluble
  • 6. Viscous and adhesive
  • 7. Resistant to heat

 

Categories of GE191 series
PNVA™ GE191 series has two categories; powder (GE191-000, GP191-405) and liquid(GE191-053 through  GP191-108)

Table 1. Powder grade (GE191-000, GP191-405)

  GE191-000 GP191-405
Apperance white or whitish powder
Water Content 5wt% or less
Viscisity Approx. 10mPa・s
(2% aquwous solution)
Approx.100 -300mPa・s
(10wt% aqueous solution)
pH 7 to 10 (temperature deg. C)

Table 2. Liquid grades (GE191-053 through 408)

Apperance  Clear pale yellow viscous liquid
Polymer concentration  Approx. 5wt% to 13wt%
Viscosity  Approx. 100 to 20,000 mPa・s
       (B-type rotational viscometer, 20 deg.C.)
pH(-)  7 - 10 (temperature 20 deg.C)

Properties of GE191 (Liquid grade)
The following table shows properties of PNVA™ GE191 liquid product line. Descending order ofmolecular mass

GE191-053 > GE191-103 > GE191-104 > GE191-107 > GE191-108

Product Grade Appearancce Pilymer concentration Viscocity(mPa・s)
GE-191-053 Syrup-like aqueous solution Approx.   5wt% 8,000~15,000
GE-191-103 Syrup-like aqueous solution Approx. 10wt% 14,000~20,000
GE-191-104 Aqueous solution Approx. 13wt% 1,500~3,000
GE-191-107 Aqueous solution Approx. 10wt% 100~400
GE-191-108 Aqueous solution Approx. 10wt% 100~200

Grade number description: GE191-**@
** is solid content concentration.
@ is a branch number to identify viscosity. The larger the number, the lower the as-is viscosity.

Physical properties of GE191

  • 1.Thickening of water
  • 2.Thickening of polar organic solvent
  • 3.Thickening of salt solution
  • 4.Temporal stability
  • 5.Flow characteristics

Notice
Please note that no PNVA samlpes will be provided for applications where the product is ingested or absorbed into the human body; for example, food additives or internal medicine.

Attention
Carefully read MSDS(material safety data sheet) issued by SHOWA DENKO K.K. before handling or storing.

Associated Information

Properties

white solid

Cautions for storage

A cool, dark place storage in the dry state in a sealed container

Packaging

10kg

Publication number in Japanese official gazette

(2)-3701

CAS Reg#

28408-65-3

Inquiry of this product

Functional Chemicals Division, Specialty Chemicals Department , Presonal Care Group
TEL :+81-3-6402-5090
FAX :+81-3-5403-5730

The inquiry form is here.

The data shown below are representative figures. They are not guaranteed values.

Contact Us

  • Here, there, and everywhere, SHOWA DENKO!