This thesis is accomplished in Tampere University of Applied Sciences. Polymers used in paper making process are discussed in this thesis. This thesis is divided into two parts. One part lists polymers applied in different sections on a paper machine. Another part is about polymers in paper grades.

Mainly used polymers in papermaking industry process are listed below: Polyethylene, known as PE, is used in extrusion coating and lamination. Products like film, packaging bags, containers are made widespread over the world. Besides, Polyethylene is also used in paper machine as polyethylene covers.

Polypropylene (PP) is similar to polyethylene and also used in similar products. Besides, PP can also against aromas and solvents, which cannot be reached by PE.

Polyethylene terephthalate, known as PET, has the similar application as PP. Polyethylene terephthalate’s abrasion resistance and dimensional stability make it the dominate material for fabrics in paper machines.

Polyamide (PA) is used in the manufacture of clothing and carpets, and also can be used as a barrier polymer. With the same properties, EVOH is another barrier polymers used for the same reason. Besides, PA is also used in producing fabrics in paper machines.

Rubber is used in produce roll cover nowadays, especially synthetic rubber.

Other polymers such as PAE (polyamide-epichlorohydrin) and PAAE (polyaminoamide-epichlorohydrin) are used as wet strength additives while another polymer called polyacrylamide is used as dry strength additive.

Rosin can be used mostly in internal sizing. And starch can be also used for papermaking; especially in sizing and wet end chemistry to improve the paper quality.All of rosins used in papermaking are natural products. As for surface sizing, apart from starch, there is another four different polymers underutilization: SMA (Styrenen maleic anhydride), SAE (Styrene acrylate emulsions), PUD (Polyurethanes), and EAA (Ethylene acrylic acid).