Ester Gum (Glycerol Ester of Gum Rosin)

Glycerol Ester of Gum Rosin ESTERG85, also known as Glyceryl Rosinate, is a slightly yellow, transparent solid made from gum rosin or refined gum rosin through esterification with glycerol. It serves as an excellent tackifying resin.

Product Specifications

Applications and Benefits:

• EVA-based hot melt glue sticks
• Bookbindings
• Pressure-sensitive adhesive based on SIS or SBS
• Adhesives, emulsions, and paints based on NR and CR
• Food-grade: Emulsification stabilizer for drinks
• Ingredient in chewing gum and bubble gum

Caution:

Handle in accordance with safety guidelines. Refer to SDS for details.

Hydroxyethyl Cellulose HEC 250 HHBR

HEC (Hydroxyethylcellulose) is a thickener for water based products. The HEC allows you to modify rheology and build pleasing textures in shampoos, conditioners, body washes, hair colorants, creams and lotions, skin cleansers and many more.

This grade of HEC with designation 250 HHBR offer delayed hydration and superior resistance to biological and chemical degradation. A 1% preparation of HEC250 in water results a viscosity of about 3400 up to 5500 cps.

It is an off-white powder that is dispersed and dissolved in cold or hot water, to produce solutions of varying viscosities. Chemically, it is cellulose of short to very long chain that has been etherified to hydroxyethyl ether to achieve an optimum balance of properties. HEC250 is used as a viscosity and rheology modifier, protective colloid, water retention agent, stabilizer and suspending agent, particularly in those applications where a nonionic material is desired.

For cold or room temperature preparation a continuous stirring of at least 30 minutes is recommended to get a consistent and homogeneous viscosity. 

Other properties are as follows:

Moisture content as packed, 5% Max

pH of solution: 6 up to 8.5

Particle size: Passes U.S. Mesh 325

Uses/ Applications:

HEC250HHBR hydroxyethylcellulose is a granular powder that dissolves in water to give clear smooth solutions, which exhibit a pseudoplastic flow behavior. At neutral pH and ambient temperature, it disperses in water without lump formation and provides easy dissolution. These solutions are unaffected by high concentration of soluble salts. Viscosity is little affected by mild acids and alkalies. Because of its nonionic character HEC has wide compatibility with other materials, such as emulsion polymers, natural and synthetic gums, emulsifiers, defoamers.

HEC is used as high efficiency nonionic thickener, water retension aid and rheology modifier in all types of water based paints and surface coatings, and in a variety of other aqueous industrial products.  HEC250HHBR offers additional feature of superior storage stability when used under conditions that enhance microbial growth. 

As a protective colloid and stabilizer HEC performs outstandingly in the emulsion and suspension polymerization of many vinyl polymers. Its unique combination of properties explains its use in pigment dispersion and in tile adhesives. 

Regulatory Status:

HEC is in compliance with the requirements of the U.S. Food and Drug Administration for use in adhesives, resinous and polymeric coatings employed on food-contact surfaces of metal, paper or paperboard articles, and other suitable substances intended for use in food packaging as specified in the Code of Federal Regulations, Title 21, Sections 175.105, 175.300, 176.180, 177.1210. and 182.99.

This grade of HEC does not comply with USP/FCC for pharmaceutical applications.

CAS Number: 9004-62-0

CAS Name: Cellulose, 2-hydroxyethyl ether

Key Features

• Delayed hydration and superior stability
• Forms clear, smooth solutions
• Resistant to biological and chemical degradation
• Compatible with a wide range of materials
• Nonionic nature ideal for various applications
• Compliant with U.S. FDA for food-contact surfaces

Product Specifications

Polyvinyl Alcohol Grade 49-88

Polyvinyl Alcohol Grade 49-88 is a high-viscosity (49 cps for a 4% solution) and partially hydrolyzed (88%) water-soluble polymer. Equivalent to PVOH5042, Elvanol® 50-42, SELVOL 540, and POVAL 49-88, it dissolves in cold water but benefits from heating or warm water for complete dissolution. This polymer offers high tensile strength, tear resistance, and excellent properties as a disperser and stabilizer.

Applications include stabilizing vinyl acetate, polystyrene, and polyvinyl chloride emulsions, re-moisturizing adhesives, temporary binders for ceramics, water-soluble films, paper adhesives, photosensitive coatings, and as a soil anti-redeposition agent. PVOH 49-88 is also widely used in personal care, construction, textile, and emulsion industries and is a key ingredient for making slime.

Product Specifications

Applications and Benefits:

• Stabilization of vinyl acetate, polystyrene, and PVC emulsions
• Binder for adhesives and paper coatings
• Temporary binder for ceramics
• Water-soluble films and photosensitive coatings
• Soil anti-redeposition agent
• Key ingredient for slime making

Caution:

Handle in accordance with recommended safety procedures. Refer to the Safety Data Sheet for detailed handling and storage guidelines.