合成树脂为人工合成的高分子聚合物，是由低分子原料（如乙烯、丙烯、氯乙烯等）通过聚合反应生产的。工业上常用的聚合方法有本体聚合、悬浮聚合、乳液聚合和溶液聚合四种。通常为加热可软化的固体，受热时通常有熔融或软化的温度范围，在外力作用下可呈塑性流动状态。
中国石化拥有世界先进的生产工艺，近年来自主知识产权和技术应用比例有较大提高，部分技术达到国际先进水平，可生产聚乙烯、聚丙烯、聚氯乙烯、聚苯乙烯、ABS等五大合成树脂和聚醚、环氧树脂等产品，并成功开发生产了多种高附加值的专用树脂，目前国内市场使用的聚烯烃产品中90%以上都能够生产。
2008年，中国石化五大合成树脂产量占全国总产量的38%，位居中国和亚洲第一。五大合成树脂中的聚烯烃国内市场占有率约为41%，产能居世界第四位,其中，聚丙烯产能居世界第二位,聚乙烯产能居世界第四位。
化工销售分公司销售的合成树脂产品包括低密度聚乙烯（ L D
P E ） 、高密度聚乙烯（ H D P E ） 、线型低密度聚乙烯（L L D P E）、聚丙烯（P
P）、聚苯乙烯（P S）、聚氯乙烯（PVC）及ABS等。
中国石化合成树脂主要生产企业有：中国石化北京燕山分公司、齐鲁分公司、上海石化、扬子石化、茂名分公司、广州分公司、天津分公司、中原石化、青岛炼化、镇海炼化公司、巴陵分公司、武汉分公司、高桥分公司、济南分公司、荆门分公司、洛阳分公司、九江分公司、长岭分公司、海南炼化公司、沧州炼化、上海赛科石化、扬子巴斯夫公司、福建联合石化、上海金菲石化等。
Synthetic resin is a high-molecular polymer produced
artificially through the polymerization of low-molecular
monomers such as ethylene, propylene and chloroethylene
etc. The most common industrial polymerization
techniques are bulk polymerization, suspension
polymerization, emulsion polymerization and solution
polymerization. Synthetic resin is typically a solid
which would soften when heated. There is typically a
temperature range within which synthetic resin would
melt or soften when heated. In the presence of an
external force, synthetic c resin may exhibit a plastic
flowed.
Sinopec has advanced synthetic resin production
technologies. In recent years, the company’s proprietary
technologies have been playing an increasingly big role
in the company’s petrochemical production. Some of these
technologies are among the most advanced worldwide. The
products mainly include polyethylene, polypropylene,
polyvinylchloride, polystyrene, ABS (known as the five
major synthetic resin products), polyether, epoxy resin
,etc. The company has developed a series of
high-value-added specialty resin products. Sinopec is
capable of producing over 90% of the polyolefin products
available in China's domestic market.
In 2008, 38% of China’s output of the five major
synthetic resin products are produced by Sinopec, making
the Company the largest producer of these products in
China and Asia. Sinopec controls around 41% share of
China’s domestic polyolefin market and its polyolefin
capacity is the fourth largest worldwide. The company’s
polypropylene capacity is the second-largest worldwide
and polyethylene capacity is the fourth-largest
worldwide.
SCS’ synthetic resin products include low-density
polyethylene (LDPE), high-density polyethylene (HDPE),
linear low-density polyethylene (LLDPE), polypropylene
(PP), polystyrene (PS), polyvinyl chloride (PVC) and
acrylonitrile-butadiene-styrene (ABS),etc.
Major Sinopec manufaturers that produce synthetic
resin include Sinopec Beijing Yanshan Company, Sinopec
Qilu Company, Sinopec Shanghai Petrochemical Co., Ltd.,
Sinopec Yangzi Petrochemical Co., Ltd., Sinopec Maoming
Company, Sinopec Guangzhou Company, Sinopec Tianjin
Company, Sinopec Zhongyuan Petrochemical Company,
Sinopec Qingdao Refining and Chemical Company, Sinopec
Zhenhai Refining and Chemical Company, Sinopec Baling
Company, Sinopec Wuhan Company, Sinopec Gaoqing Company,
Sinopec Jinan Company, Sinopec Jinmen Company, Sinopec
Luoyang Company, Sinopec Jiujiang Company, Sinopec
Changling Company, Sinopec Hainan Refining and Chemical
Company, Sinopec Cangzhou Refining and Chemical Company,
Sinopec Secco Petrochemical Company, Sinopec Yangzi-BASF
Company, Fujian Refining and Petrochemical Company
Limited and Shanghai Golden Phillips Petrochemical
Co.,Ltd..
