Natural Polymers for Adhesives and Sealants

Cardolite® NC-514 is a diglycidyl ether epoxy resin. Cardolite® NC-514 provides excellent flexibility, outstanding water resistance, and increased bond strength on difficult substrates like wet or oily surface. Cardolite® NC-514 is considered bio-based alternative for Bis-A based epoxy resin. It is recommended for 1K/2K epoxy adhesives and sealants as a toughener. It is used in industrial, transportations, and electrical/electronic adhesives to provide toughness, flexibility and water resistance.

Cardolite® LITE 513DF by Cardolite is a low viscosity epoxy reactive diluent and modifier based on cashew nutshell liquid (CNSL) technology. It has long hydrophobic aliphatic side chain which provides excellent water- and thermal shock resistance.

• It is an excellent alternative to difunctional diluents for increased strengths and hydrophobicity.
• Used for transportations, industrials, constructions and electronics applications.
• Partial substitution of liquid epoxy (Bis-A) with Cardolite® LITE 513DF offers well balanced mechanical strength and flexibility while increasing bio-content.
• The recommended usage levels can be 30-100% in reactive systems such as 1K and 2K epoxy adhesives and sealants.

Natrosol™ 250 HXR by Ashland is a fine powder, hygroscopic, water soluble hydroxyethylcellulose. It acts as a non-ionic viscosity- and rheology modifier, protective colloid, stabilizer, water retention- and suspending agent. It is suitable for water-based adhesives.

• It is treated to delay hydration of the particles.
• It shows compatibility with other materials such as emulsion polymers, natural and synthetic gums, emulsifiers and defoamers.
• It offers very good flow with fine particle size.
• Natrosol™ 250 HXR is used in tile adhesives.

Cardolite® NX-9203 is a di-functional CNSL polyester diol by Cardolite. It offers excellent moisture resistance and hydrolytic stability in aqueous solutions. Its reactivity with isocyanates is greater than other types of diols. Compatibility with PPG diols and Poly BD are outstanding, thus, when Cardolite® NX-9203 is blended with other diols, it shows significant improvement of hydrolytic stability. Cardolite® NX-9203 can be used in 1K/2K polyurethane adhesives and sealants, coatings, elastomers, flexible foams.

Cardolite® NX-9005 is a non-CNSL branched polyol by Cardolite. It offers excellent water resistance, high tensile strength and flexibility. Exhibits excellent bond strength on various substrates including steel, aluminum, composites, and plastics. Cardolite® NX-9005 is suitable for use in polyurethane based structural adhesives and sealant applications like windmill OEM, polyurethane pottings and high strength foams and composites. It can be formulated with aliphatic isocyanates for color stable adhesives and sealants.

Culminal™ MHEC 8000 by Ashland is a non-ionic cellulose ether used as a thickener, protective colloid, stabilizer, suspending aid, water-retention agent, binder, adhesion promoter, emulsion stabilizer and film former. It shows compatibility with many surfactants and polymers such as starch, guar and alginates. It provides pseudoplastic behavior and thixotropy. Culminal™ MHEC 8000 is suitable for construction industry (tile adhesives), tobacco industry (adhesives for cigarette paper and cigar seams) and nonwoven fabrics.

Culminal™ MHEC 15000 PFR by Ashland is a non-ionic cellulose ether. It is used as a thickener, protective colloid, stabilizer, suspending aid, water-retention agent, binder, adhesion promoter, emulsion stabilizer and film former in construction, tobacco and nonwoven industries. It shows good compatibility with many surfactants and polymers such as starch, guar and alginates. It provides pseudoplastic behavior and thixotropy. Culminal™ MHEC 15000 PFR is suitable for construction industry (tile adhesives), tobacco industry (adhesives for cigarette paper and cigar seams) and nonwoven fabrics.

Culminal™ MHEC 25000 PFF by Ashland is a non-ionic cellulose ether. It offers compatibility with many surfactants and polymers such as starch, guar and alginates. Provides pseudoplastic behavior and thixotropy. It is used as a thickener, protective colloid, stabilizer, suspending aid, water-retention agent, binder, adhesion promoter, emulsion stabilizer and film former. Culminal™ MHEC 25000 PFF by Ashland is used in construction industry (tile adhesives), tobacco industry (adhesives for cigarette paper and cigar seams) and nonwoven fabrics.

Natrosol™ 250 JR by Ashland is a fine powder, water-soluble hydroxyethylcellulose viscosity and rheology modifier. It acts as a protective colloid, water retention agent, stabilizer and suspending agent, particularly in applications where a nonionic material is desired. It is treated to delay the hydration of the particles. It provides superior resistance to biodegradation, a good balance of ease of manufacture, thickener efficiency, color acceptance and open time. It offers compatibility with other materials, such as emulsion polymers, natural and synthetic gums, emulsifiers, defoamers. It imparts very good flow properties. It is designed for wallpaper, latex, plywood- and water-based adhesives. Natrosol™ 250 JR is also used in tile adhesives.

Pentaerythritol Ester Of Rosin BL-820 by Foshan Baolin Chemical Industry is a light colored, natural refined gum rosin. It is obtained by esterification of gum rosin with pentaerythritol. It is an eco-friendly grade available as granules or flakes. It possesses high softening point. It offers thermostability, color retention, and strong adhesive properties. Pentaerythritol Ester Of Rosin BL-820 finds applications in hot melt adhesives and acrylic adhesives.